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Finding the Fourth Proportional to 359,876, 539,445.36 and 149,636

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Solution

The fourth proportional to 359,876, 539,445.36 and 149,636 is: 224,300.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,876 : 539,445.36 = 149,636 : x
  2. Step 2: Convert to fraction form
    359,876/539,445.36 = 149,636/x
  3. Step 3: Cross multiply
    359,876x = 539,445.36 × 149,636
  4. Step 4: Simplify right side
    359,876x = 80,720,445,888.96
  5. Step 5: Solve for x
    x = 80,720,445,888.96/359,876
  6. Step 6: Final answer
    x = 224,300.72

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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.