Home / 178,731-278,644.50

Finding the Third Proportional to 178,731 and 278,644.50

Calculator

Solution

The third proportional to 178,731 and 278,644.50 is: 434,411.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,731 : 278,644.50 = 278,644.50 : x
  2. Step 2: Convert to fraction form
    178,731/278,644.50 = 278,644.50/x
  3. Step 3: Cross multiply
    178,731x = 278,644.50 × 278,644.50
  4. Step 4: Simplify right side
    178,731x = 77,642,757,380.25
  5. Step 5: Solve for x
    x = 77,642,757,380.25/178,731
  6. Step 6: Final answer
    x = 434,411.25

Related Problems

Find third proportional to 89,365.50 and 139,322.25
Half scale
Find third proportional to 357,462 and 557,289
Double scale
Find third proportional to 178,733 and 278,648
Similar ratio
Find third proportional to 268,096.50 and 417,966.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.