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Finding the Fourth Proportional to 359,972.01, 539,958.02 and 138,200.49

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Solution

The fourth proportional to 359,972.01, 539,958.02 and 138,200.49 is: 207,300.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,972.01 : 539,958.02 = 138,200.49 : x
  2. Step 2: Convert to fraction form
    359,972.01/539,958.02 = 138,200.49/x
  3. Step 3: Cross multiply
    359,972.01x = 539,958.02 × 138,200.49
  4. Step 4: Simplify right side
    359,972.01x = 74,622,462,252.43
  5. Step 5: Solve for x
    x = 74,622,462,252.43/359,972.01
  6. Step 6: Final answer
    x = 207,300.74

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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.