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Finding the Fourth Proportional to 266,034.20, 398,532.90 and 160,539.80

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Solution

The fourth proportional to 266,034.20, 398,532.90 and 160,539.80 is: 240,496.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,034.20 : 398,532.90 = 160,539.80 : x
  2. Step 2: Convert to fraction form
    266,034.20/398,532.90 = 160,539.80/x
  3. Step 3: Cross multiply
    266,034.20x = 398,532.90 × 160,539.80
  4. Step 4: Simplify right side
    266,034.20x = 63,980,392,059.42
  5. Step 5: Solve for x
    x = 63,980,392,059.42/266,034.20
  6. Step 6: Final answer
    x = 240,496.87

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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.