Home / 284,759.12-392,935.56-157,417.04

Finding the Fourth Proportional to 284,759.12, 392,935.56 and 157,417.04

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Solution

The fourth proportional to 284,759.12, 392,935.56 and 157,417.04 is: 217,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,759.12 : 392,935.56 = 157,417.04 : x
  2. Step 2: Convert to fraction form
    284,759.12/392,935.56 = 157,417.04/x
  3. Step 3: Cross multiply
    284,759.12x = 392,935.56 × 157,417.04
  4. Step 4: Simplify right side
    284,759.12x = 61,854,752,765.94
  5. Step 5: Solve for x
    x = 61,854,752,765.94/284,759.12
  6. Step 6: Final answer
    x = 217,217.81

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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.