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Finding the Fourth Proportional to 266,097.90, 399,183.30 and 88,586.40

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Solution

The fourth proportional to 266,097.90, 399,183.30 and 88,586.40 is: 132,891.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,097.90 : 399,183.30 = 88,586.40 : x
  2. Step 2: Convert to fraction form
    266,097.90/399,183.30 = 88,586.40/x
  3. Step 3: Cross multiply
    266,097.90x = 399,183.30 × 88,586.40
  4. Step 4: Simplify right side
    266,097.90x = 35,362,211,487.12
  5. Step 5: Solve for x
    x = 35,362,211,487.12/266,097.90
  6. Step 6: Final answer
    x = 132,891.73

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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.