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Finding the Fourth Proportional to 269,808.88, 404,642.82 and 80,218.18

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Solution

The fourth proportional to 269,808.88, 404,642.82 and 80,218.18 is: 120,306.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,808.88 : 404,642.82 = 80,218.18 : x
  2. Step 2: Convert to fraction form
    269,808.88/404,642.82 = 80,218.18/x
  3. Step 3: Cross multiply
    269,808.88x = 404,642.82 × 80,218.18
  4. Step 4: Simplify right side
    269,808.88x = 32,459,710,169.38
  5. Step 5: Solve for x
    x = 32,459,710,169.38/269,808.88
  6. Step 6: Final answer
    x = 120,306.31

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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.