Home / 204,945.40-307,418.10-148,520.80

Finding the Fourth Proportional to 204,945.40, 307,418.10 and 148,520.80

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Solution

The fourth proportional to 204,945.40, 307,418.10 and 148,520.80 is: 222,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,945.40 : 307,418.10 = 148,520.80 : x
  2. Step 2: Convert to fraction form
    204,945.40/307,418.10 = 148,520.80/x
  3. Step 3: Cross multiply
    204,945.40x = 307,418.10 × 148,520.80
  4. Step 4: Simplify right side
    204,945.40x = 45,657,982,146.48
  5. Step 5: Solve for x
    x = 45,657,982,146.48/204,945.40
  6. Step 6: Final answer
    x = 222,781.20

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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.