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Finding the Fourth Proportional to 238,809.46, 329,559.20 and 129,916.17

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Solution

The fourth proportional to 238,809.46, 329,559.20 and 129,916.17 is: 179,285.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,809.46 : 329,559.20 = 129,916.17 : x
  2. Step 2: Convert to fraction form
    238,809.46/329,559.20 = 129,916.17/x
  3. Step 3: Cross multiply
    238,809.46x = 329,559.20 × 129,916.17
  4. Step 4: Simplify right side
    238,809.46x = 42,815,068,402.68
  5. Step 5: Solve for x
    x = 42,815,068,402.68/238,809.46
  6. Step 6: Final answer
    x = 179,285.48

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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.