Home / 448,438.14-618,816.51-257,317.02

Finding the Fourth Proportional to 448,438.14, 618,816.51 and 257,317.02

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Solution

The fourth proportional to 448,438.14, 618,816.51 and 257,317.02 is: 355,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,438.14 : 618,816.51 = 257,317.02 : x
  2. Step 2: Convert to fraction form
    448,438.14/618,816.51 = 257,317.02/x
  3. Step 3: Cross multiply
    448,438.14x = 618,816.51 × 257,317.02
  4. Step 4: Simplify right side
    448,438.14x = 159,232,020,280.00
  5. Step 5: Solve for x
    x = 159,232,020,280.00/448,438.14
  6. Step 6: Final answer
    x = 355,081.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.