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Finding the Fourth Proportional to 438,781.06, 658,171.68 and 158,298.22

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Solution

The fourth proportional to 438,781.06, 658,171.68 and 158,298.22 is: 237,447.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,781.06 : 658,171.68 = 158,298.22 : x
  2. Step 2: Convert to fraction form
    438,781.06/658,171.68 = 158,298.22/x
  3. Step 3: Cross multiply
    438,781.06x = 658,171.68 × 158,298.22
  4. Step 4: Simplify right side
    438,781.06x = 104,187,405,398.41
  5. Step 5: Solve for x
    x = 104,187,405,398.41/438,781.06
  6. Step 6: Final answer
    x = 237,447.36

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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.