Home / 284,761.12-392,954.64-157,429.12

Finding the Fourth Proportional to 284,761.12, 392,954.64 and 157,429.12

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Solution

The fourth proportional to 284,761.12, 392,954.64 and 157,429.12 is: 217,243.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,761.12 : 392,954.64 = 157,429.12 : x
  2. Step 2: Convert to fraction form
    284,761.12/392,954.64 = 157,429.12/x
  3. Step 3: Cross multiply
    284,761.12x = 392,954.64 × 157,429.12
  4. Step 4: Simplify right side
    284,761.12x = 61,862,503,175.12
  5. Step 5: Solve for x
    x = 61,862,503,175.12/284,761.12
  6. Step 6: Final answer
    x = 217,243.50

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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.