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Finding the Fourth Proportional to 438,755.06, 658,132.59 and 106,331.06

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Solution

The fourth proportional to 438,755.06, 658,132.59 and 106,331.06 is: 159,496.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,755.06 : 658,132.59 = 106,331.06 : x
  2. Step 2: Convert to fraction form
    438,755.06/658,132.59 = 106,331.06/x
  3. Step 3: Cross multiply
    438,755.06x = 658,132.59 × 106,331.06
  4. Step 4: Simplify right side
    438,755.06x = 69,979,937,959.32
  5. Step 5: Solve for x
    x = 69,979,937,959.32/438,755.06
  6. Step 6: Final answer
    x = 159,496.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.