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Finding the Fourth Proportional to 238,603.73, 329,279.44 and 129,715.39

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Solution

The fourth proportional to 238,603.73, 329,279.44 and 129,715.39 is: 179,010.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,603.73 : 329,279.44 = 129,715.39 : x
  2. Step 2: Convert to fraction form
    238,603.73/329,279.44 = 129,715.39/x
  3. Step 3: Cross multiply
    238,603.73x = 329,279.44 × 129,715.39
  4. Step 4: Simplify right side
    238,603.73x = 42,712,610,978.58
  5. Step 5: Solve for x
    x = 42,712,610,978.58/238,603.73
  6. Step 6: Final answer
    x = 179,010.66

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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.