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Finding the Fourth Proportional to 359,781.96, 539,574.35 and 135,125

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Solution

The fourth proportional to 359,781.96, 539,574.35 and 135,125 is: 202,650.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,781.96 : 539,574.35 = 135,125 : x
  2. Step 2: Convert to fraction form
    359,781.96/539,574.35 = 135,125/x
  3. Step 3: Cross multiply
    359,781.96x = 539,574.35 × 135,125
  4. Step 4: Simplify right side
    359,781.96x = 72,909,984,043.75
  5. Step 5: Solve for x
    x = 72,909,984,043.75/359,781.96
  6. Step 6: Final answer
    x = 202,650.47

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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.