Home / 260,744.40-391,408.20-243,612.90

Finding the Fourth Proportional to 260,744.40, 391,408.20 and 243,612.90

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Solution

The fourth proportional to 260,744.40, 391,408.20 and 243,612.90 is: 365,691.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,744.40 : 391,408.20 = 243,612.90 : x
  2. Step 2: Convert to fraction form
    260,744.40/391,408.20 = 243,612.90/x
  3. Step 3: Cross multiply
    260,744.40x = 391,408.20 × 243,612.90
  4. Step 4: Simplify right side
    260,744.40x = 95,352,086,685.78
  5. Step 5: Solve for x
    x = 95,352,086,685.78/260,744.40
  6. Step 6: Final answer
    x = 365,691.79

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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.