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Finding the Fourth Proportional to 372,066.50, 558,347.92 and 135,409.11

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Solution

The fourth proportional to 372,066.50, 558,347.92 and 135,409.11 is: 203,203.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,066.50 : 558,347.92 = 135,409.11 : x
  2. Step 2: Convert to fraction form
    372,066.50/558,347.92 = 135,409.11/x
  3. Step 3: Cross multiply
    372,066.50x = 558,347.92 × 135,409.11
  4. Step 4: Simplify right side
    372,066.50x = 75,605,394,917.55
  5. Step 5: Solve for x
    x = 75,605,394,917.55/372,066.50
  6. Step 6: Final answer
    x = 203,203.98

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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.