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Finding the Fourth Proportional to 392,750.76, 541,999.68 and 222,988.52

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Solution

The fourth proportional to 392,750.76, 541,999.68 and 222,988.52 is: 307,726.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,750.76 : 541,999.68 = 222,988.52 : x
  2. Step 2: Convert to fraction form
    392,750.76/541,999.68 = 222,988.52/x
  3. Step 3: Cross multiply
    392,750.76x = 541,999.68 × 222,988.52
  4. Step 4: Simplify right side
    392,750.76x = 120,859,706,483.67
  5. Step 5: Solve for x
    x = 120,859,706,483.67/392,750.76
  6. Step 6: Final answer
    x = 307,726.22

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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.