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Finding the Fourth Proportional to 266,750.60, 399,251.10 and 207,264.20

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Solution

The fourth proportional to 266,750.60, 399,251.10 and 207,264.20 is: 310,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,750.60 : 399,251.10 = 207,264.20 : x
  2. Step 2: Convert to fraction form
    266,750.60/399,251.10 = 207,264.20/x
  3. Step 3: Cross multiply
    266,750.60x = 399,251.10 × 207,264.20
  4. Step 4: Simplify right side
    266,750.60x = 82,750,459,840.62
  5. Step 5: Solve for x
    x = 82,750,459,840.62/266,750.60
  6. Step 6: Final answer
    x = 310,216.58

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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.