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Finding the Fourth Proportional to 372,542.85, 558,897.61 and 135,885.53

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Solution

The fourth proportional to 372,542.85, 558,897.61 and 135,885.53 is: 203,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,542.85 : 558,897.61 = 135,885.53 : x
  2. Step 2: Convert to fraction form
    372,542.85/558,897.61 = 135,885.53/x
  3. Step 3: Cross multiply
    372,542.85x = 558,897.61 × 135,885.53
  4. Step 4: Simplify right side
    372,542.85x = 75,946,097,950.58
  5. Step 5: Solve for x
    x = 75,946,097,950.58/372,542.85
  6. Step 6: Final answer
    x = 203,858.69

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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.