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Finding the Fourth Proportional to 260,771.70, 391,157.55 and 160,607.10

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Solution

The fourth proportional to 260,771.70, 391,157.55 and 160,607.10 is: 240,910.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,771.70 : 391,157.55 = 160,607.10 : x
  2. Step 2: Convert to fraction form
    260,771.70/391,157.55 = 160,607.10/x
  3. Step 3: Cross multiply
    260,771.70x = 391,157.55 × 160,607.10
  4. Step 4: Simplify right side
    260,771.70x = 62,822,679,748.61
  5. Step 5: Solve for x
    x = 62,822,679,748.61/260,771.70
  6. Step 6: Final answer
    x = 240,910.65

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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.