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Finding the Fourth Proportional to 240,057, 331,279.20 and 144,567.72

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Solution

The fourth proportional to 240,057, 331,279.20 and 144,567.72 is: 199,503.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,057 : 331,279.20 = 144,567.72 : x
  2. Step 2: Convert to fraction form
    240,057/331,279.20 = 144,567.72/x
  3. Step 3: Cross multiply
    240,057x = 331,279.20 × 144,567.72
  4. Step 4: Simplify right side
    240,057x = 47,892,278,627.42
  5. Step 5: Solve for x
    x = 47,892,278,627.42/240,057
  6. Step 6: Final answer
    x = 199,503.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.