Home / 315,265.68-472,921.80-90,617.04

Finding the Fourth Proportional to 315,265.68, 472,921.80 and 90,617.04

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Solution

The fourth proportional to 315,265.68, 472,921.80 and 90,617.04 is: 135,932.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,265.68 : 472,921.80 = 90,617.04 : x
  2. Step 2: Convert to fraction form
    315,265.68/472,921.80 = 90,617.04/x
  3. Step 3: Cross multiply
    315,265.68x = 472,921.80 × 90,617.04
  4. Step 4: Simplify right side
    315,265.68x = 42,854,773,667.47
  5. Step 5: Solve for x
    x = 42,854,773,667.47/315,265.68
  6. Step 6: Final answer
    x = 135,932.25

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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.