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Finding the Fourth Proportional to 269,809.78, 372,338.13 and 148,951.15

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Solution

The fourth proportional to 269,809.78, 372,338.13 and 148,951.15 is: 205,552.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,809.78 : 372,338.13 = 148,951.15 : x
  2. Step 2: Convert to fraction form
    269,809.78/372,338.13 = 148,951.15/x
  3. Step 3: Cross multiply
    269,809.78x = 372,338.13 × 148,951.15
  4. Step 4: Simplify right side
    269,809.78x = 55,460,190,045.90
  5. Step 5: Solve for x
    x = 55,460,190,045.90/269,809.78
  6. Step 6: Final answer
    x = 205,552.93

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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.