Home / 284,257.14-392,272.47-156,930

Finding the Fourth Proportional to 284,257.14, 392,272.47 and 156,930

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Solution

The fourth proportional to 284,257.14, 392,272.47 and 156,930 is: 216,562.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,257.14 : 392,272.47 = 156,930 : x
  2. Step 2: Convert to fraction form
    284,257.14/392,272.47 = 156,930/x
  3. Step 3: Cross multiply
    284,257.14x = 392,272.47 × 156,930
  4. Step 4: Simplify right side
    284,257.14x = 61,559,318,717.10
  5. Step 5: Solve for x
    x = 61,559,318,717.10/284,257.14
  6. Step 6: Final answer
    x = 216,562.08

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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.