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Finding the Fourth Proportional to 266,229.76, 399,820.56 and 255,527.20

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Solution

The fourth proportional to 266,229.76, 399,820.56 and 255,527.20 is: 383,747.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,229.76 : 399,820.56 = 255,527.20 : x
  2. Step 2: Convert to fraction form
    266,229.76/399,820.56 = 255,527.20/x
  3. Step 3: Cross multiply
    266,229.76x = 399,820.56 × 255,527.20
  4. Step 4: Simplify right side
    266,229.76x = 102,165,028,199.23
  5. Step 5: Solve for x
    x = 102,165,028,199.23/266,229.76
  6. Step 6: Final answer
    x = 383,747.59

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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.