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Finding the Fourth Proportional to 359,974.96, 539,977.20 and 123,480.28

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Solution

The fourth proportional to 359,974.96, 539,977.20 and 123,480.28 is: 185,225.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,974.96 : 539,977.20 = 123,480.28 : x
  2. Step 2: Convert to fraction form
    359,974.96/539,977.20 = 123,480.28/x
  3. Step 3: Cross multiply
    359,974.96x = 539,977.20 × 123,480.28
  4. Step 4: Simplify right side
    359,974.96x = 66,676,535,849.62
  5. Step 5: Solve for x
    x = 66,676,535,849.62/359,974.96
  6. Step 6: Final answer
    x = 185,225.48

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1.5x scale

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.