Home / 257,079.20-385,766.34-200,761.20

Finding the Fourth Proportional to 257,079.20, 385,766.34 and 200,761.20

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Solution

The fourth proportional to 257,079.20, 385,766.34 and 200,761.20 is: 301,257.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,079.20 : 385,766.34 = 200,761.20 : x
  2. Step 2: Convert to fraction form
    257,079.20/385,766.34 = 200,761.20/x
  3. Step 3: Cross multiply
    257,079.20x = 385,766.34 × 200,761.20
  4. Step 4: Simplify right side
    257,079.20x = 77,446,913,338.01
  5. Step 5: Solve for x
    x = 77,446,913,338.01/257,079.20
  6. Step 6: Final answer
    x = 301,257.02

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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.