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Finding the Fourth Proportional to 372,404.20, 558,606.30 and 239,434.60

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Solution

The fourth proportional to 372,404.20, 558,606.30 and 239,434.60 is: 359,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,404.20 : 558,606.30 = 239,434.60 : x
  2. Step 2: Convert to fraction form
    372,404.20/558,606.30 = 239,434.60/x
  3. Step 3: Cross multiply
    372,404.20x = 558,606.30 × 239,434.60
  4. Step 4: Simplify right side
    372,404.20x = 133,749,675,997.98
  5. Step 5: Solve for x
    x = 133,749,675,997.98/372,404.20
  6. Step 6: Final answer
    x = 359,151.90

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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.