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Finding the Fourth Proportional to 269,403.98, 371,780.08 and 148,549.55

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Solution

The fourth proportional to 269,403.98, 371,780.08 and 148,549.55 is: 204,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,403.98 : 371,780.08 = 148,549.55 : x
  2. Step 2: Convert to fraction form
    269,403.98/371,780.08 = 148,549.55/x
  3. Step 3: Cross multiply
    269,403.98x = 371,780.08 × 148,549.55
  4. Step 4: Simplify right side
    269,403.98x = 55,227,761,352.69
  5. Step 5: Solve for x
    x = 55,227,761,352.69/269,403.98
  6. Step 6: Final answer
    x = 204,999.80

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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.