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Finding the Fourth Proportional to 269,279.76, 371,607.84 and 154,527.78

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Solution

The fourth proportional to 269,279.76, 371,607.84 and 154,527.78 is: 213,249.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,279.76 : 371,607.84 = 154,527.78 : x
  2. Step 2: Convert to fraction form
    269,279.76/371,607.84 = 154,527.78/x
  3. Step 3: Cross multiply
    269,279.76x = 371,607.84 × 154,527.78
  4. Step 4: Simplify right side
    269,279.76x = 57,423,734,545.80
  5. Step 5: Solve for x
    x = 57,423,734,545.80/269,279.76
  6. Step 6: Final answer
    x = 213,249.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.