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Finding the Fourth Proportional to 269,938.80, 404,908.20 and 157,745.70

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Solution

The fourth proportional to 269,938.80, 404,908.20 and 157,745.70 is: 236,618.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,938.80 : 404,908.20 = 157,745.70 : x
  2. Step 2: Convert to fraction form
    269,938.80/404,908.20 = 157,745.70/x
  3. Step 3: Cross multiply
    269,938.80x = 404,908.20 × 157,745.70
  4. Step 4: Simplify right side
    269,938.80x = 63,872,527,444.74
  5. Step 5: Solve for x
    x = 63,872,527,444.74/269,938.80
  6. Step 6: Final answer
    x = 236,618.55

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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.