Home / 220,948.80-331,034.40-181,291.20

Finding the Fourth Proportional to 220,948.80, 331,034.40 and 181,291.20

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Solution

The fourth proportional to 220,948.80, 331,034.40 and 181,291.20 is: 271,617.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,948.80 : 331,034.40 = 181,291.20 : x
  2. Step 2: Convert to fraction form
    220,948.80/331,034.40 = 181,291.20/x
  3. Step 3: Cross multiply
    220,948.80x = 331,034.40 × 181,291.20
  4. Step 4: Simplify right side
    220,948.80x = 60,013,623,617.28
  5. Step 5: Solve for x
    x = 60,013,623,617.28/220,948.80
  6. Step 6: Final answer
    x = 271,617.78

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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.