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Finding the Fourth Proportional to 665,245.31, 998,615.79 and 266,167.62

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Solution

The fourth proportional to 665,245.31, 998,615.79 and 266,167.62 is: 399,550.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,245.31 : 998,615.79 = 266,167.62 : x
  2. Step 2: Convert to fraction form
    665,245.31/998,615.79 = 266,167.62/x
  3. Step 3: Cross multiply
    665,245.31x = 998,615.79 × 266,167.62
  4. Step 4: Simplify right side
    665,245.31x = 265,799,188,118.72
  5. Step 5: Solve for x
    x = 265,799,188,118.72/665,245.31
  6. Step 6: Final answer
    x = 399,550.64

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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.