Home / 255,398.28-383,154-77,918.88

Finding the Fourth Proportional to 255,398.28, 383,154 and 77,918.88

Calculator

Solution

The fourth proportional to 255,398.28, 383,154 and 77,918.88 is: 116,895.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,398.28 : 383,154 = 77,918.88 : x
  2. Step 2: Convert to fraction form
    255,398.28/383,154 = 77,918.88/x
  3. Step 3: Cross multiply
    255,398.28x = 383,154 × 77,918.88
  4. Step 4: Simplify right side
    255,398.28x = 29,854,930,547.52
  5. Step 5: Solve for x
    x = 29,854,930,547.52/255,398.28
  6. Step 6: Final answer
    x = 116,895.58

Related Problems

Find fourth proportional to 127,699.14, 191,577 and 38,959.44
Half scale
Find fourth proportional to 510,796.56, 766,308 and 155,837.76
Double scale
Find fourth proportional to 255,399.28, 383,155.50 and 77,919.88
Similar ratio
Find fourth proportional to 383,097.42, 574,731 and 116,878.32
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.