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Finding the Fourth Proportional to 359,751.03, 539,341.87 and 135,086.45

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Solution

The fourth proportional to 359,751.03, 539,341.87 and 135,086.45 is: 202,522.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,751.03 : 539,341.87 = 135,086.45 : x
  2. Step 2: Convert to fraction form
    359,751.03/539,341.87 = 135,086.45/x
  3. Step 3: Cross multiply
    359,751.03x = 539,341.87 × 135,086.45
  4. Step 4: Simplify right side
    359,751.03x = 72,857,778,554.66
  5. Step 5: Solve for x
    x = 72,857,778,554.66/359,751.03
  6. Step 6: Final answer
    x = 202,522.78

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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.