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Finding the Fourth Proportional to 269,679.70, 404,235.18 and 89,717.06

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Solution

The fourth proportional to 269,679.70, 404,235.18 and 89,717.06 is: 134,480.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,679.70 : 404,235.18 = 89,717.06 : x
  2. Step 2: Convert to fraction form
    269,679.70/404,235.18 = 89,717.06/x
  3. Step 3: Cross multiply
    269,679.70x = 404,235.18 × 89,717.06
  4. Step 4: Simplify right side
    269,679.70x = 36,266,789,876.99
  5. Step 5: Solve for x
    x = 36,266,789,876.99/269,679.70
  6. Step 6: Final answer
    x = 134,480.98

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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.