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Finding the Fourth Proportional to 266,213.08, 399,498.90 and 108,469.90

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Solution

The fourth proportional to 266,213.08, 399,498.90 and 108,469.90 is: 162,777.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,213.08 : 399,498.90 = 108,469.90 : x
  2. Step 2: Convert to fraction form
    266,213.08/399,498.90 = 108,469.90/x
  3. Step 3: Cross multiply
    266,213.08x = 399,498.90 × 108,469.90
  4. Step 4: Simplify right side
    266,213.08x = 43,333,605,733.11
  5. Step 5: Solve for x
    x = 43,333,605,733.11/266,213.08
  6. Step 6: Final answer
    x = 162,777.90

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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.