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Finding the Fourth Proportional to 238,503.40, 329,128.68 and 129,602.92

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Solution

The fourth proportional to 238,503.40, 329,128.68 and 129,602.92 is: 178,848.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,503.40 : 329,128.68 = 129,602.92 : x
  2. Step 2: Convert to fraction form
    238,503.40/329,128.68 = 129,602.92/x
  3. Step 3: Cross multiply
    238,503.40x = 329,128.68 × 129,602.92
  4. Step 4: Simplify right side
    238,503.40x = 42,656,037,983.75
  5. Step 5: Solve for x
    x = 42,656,037,983.75/238,503.40
  6. Step 6: Final answer
    x = 178,848.76

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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.