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Finding the Fourth Proportional to 266,064.30, 399,096.45 and 255,566.70

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Solution

The fourth proportional to 266,064.30, 399,096.45 and 255,566.70 is: 383,350.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,064.30 : 399,096.45 = 255,566.70 : x
  2. Step 2: Convert to fraction form
    266,064.30/399,096.45 = 255,566.70/x
  3. Step 3: Cross multiply
    266,064.30x = 399,096.45 × 255,566.70
  4. Step 4: Simplify right side
    266,064.30x = 101,995,762,708.22
  5. Step 5: Solve for x
    x = 101,995,762,708.22/266,064.30
  6. Step 6: Final answer
    x = 383,350.05

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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.