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Finding the Fourth Proportional to 260,755.20, 391,132.80 and 160,590.60

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Solution

The fourth proportional to 260,755.20, 391,132.80 and 160,590.60 is: 240,885.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,755.20 : 391,132.80 = 160,590.60 : x
  2. Step 2: Convert to fraction form
    260,755.20/391,132.80 = 160,590.60/x
  3. Step 3: Cross multiply
    260,755.20x = 391,132.80 × 160,590.60
  4. Step 4: Simplify right side
    260,755.20x = 62,812,251,031.68
  5. Step 5: Solve for x
    x = 62,812,251,031.68/260,755.20
  6. Step 6: Final answer
    x = 240,885.90

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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.