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Finding the Fourth Proportional to 238,663.35, 329,349.11 and 129,764.25

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Solution

The fourth proportional to 238,663.35, 329,349.11 and 129,764.25 is: 179,071.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,663.35 : 329,349.11 = 129,764.25 : x
  2. Step 2: Convert to fraction form
    238,663.35/329,349.11 = 129,764.25/x
  3. Step 3: Cross multiply
    238,663.35x = 329,349.11 × 129,764.25
  4. Step 4: Simplify right side
    238,663.35x = 42,737,739,598.50
  5. Step 5: Solve for x
    x = 42,737,739,598.50/238,663.35
  6. Step 6: Final answer
    x = 179,071.23

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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.