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Finding the Fourth Proportional to 226,480.80, 339,490.80 and 132,938.40

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Solution

The fourth proportional to 226,480.80, 339,490.80 and 132,938.40 is: 199,272.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,480.80 : 339,490.80 = 132,938.40 : x
  2. Step 2: Convert to fraction form
    226,480.80/339,490.80 = 132,938.40/x
  3. Step 3: Cross multiply
    226,480.80x = 339,490.80 × 132,938.40
  4. Step 4: Simplify right side
    226,480.80x = 45,131,363,766.72
  5. Step 5: Solve for x
    x = 45,131,363,766.72/226,480.80
  6. Step 6: Final answer
    x = 199,272.36

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1.5x scale

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.