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Finding the Fourth Proportional to 266,781.88, 400,173.50 and 109,010.34

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Solution

The fourth proportional to 266,781.88, 400,173.50 and 109,010.34 is: 163,515.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,781.88 : 400,173.50 = 109,010.34 : x
  2. Step 2: Convert to fraction form
    266,781.88/400,173.50 = 109,010.34/x
  3. Step 3: Cross multiply
    266,781.88x = 400,173.50 × 109,010.34
  4. Step 4: Simplify right side
    266,781.88x = 43,623,049,293.99
  5. Step 5: Solve for x
    x = 43,623,049,293.99/266,781.88
  6. Step 6: Final answer
    x = 163,515.79

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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.