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Finding the Fourth Proportional to 359,705.20, 539,995.20 and 182,120.80

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Solution

The fourth proportional to 359,705.20, 539,995.20 and 182,120.80 is: 273,402.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,705.20 : 539,995.20 = 182,120.80 : x
  2. Step 2: Convert to fraction form
    359,705.20/539,995.20 = 182,120.80/x
  3. Step 3: Cross multiply
    359,705.20x = 539,995.20 × 182,120.80
  4. Step 4: Simplify right side
    359,705.20x = 98,344,357,820.16
  5. Step 5: Solve for x
    x = 98,344,357,820.16/359,705.20
  6. Step 6: Final answer
    x = 273,402.66

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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.