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Finding the Fourth Proportional to 260,666, 391,002.84 and 63,674

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Solution

The fourth proportional to 260,666, 391,002.84 and 63,674 is: 95,511.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,666 : 391,002.84 = 63,674 : x
  2. Step 2: Convert to fraction form
    260,666/391,002.84 = 63,674/x
  3. Step 3: Cross multiply
    260,666x = 391,002.84 × 63,674
  4. Step 4: Simplify right side
    260,666x = 24,896,714,834.16
  5. Step 5: Solve for x
    x = 24,896,714,834.16/260,666
  6. Step 6: Final answer
    x = 95,511.94

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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.