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Finding the Fourth Proportional to 439,992.14, 660,302.96 and 187,449.53

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Solution

The fourth proportional to 439,992.14, 660,302.96 and 187,449.53 is: 281,308.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,992.14 : 660,302.96 = 187,449.53 : x
  2. Step 2: Convert to fraction form
    439,992.14/660,302.96 = 187,449.53/x
  3. Step 3: Cross multiply
    439,992.14x = 660,302.96 × 187,449.53
  4. Step 4: Simplify right side
    439,992.14x = 123,773,475,270.85
  5. Step 5: Solve for x
    x = 123,773,475,270.85/439,992.14
  6. Step 6: Final answer
    x = 281,308.38

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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.