Home / 220,631.28-304,576.92-135,821.04

Finding the Fourth Proportional to 220,631.28, 304,576.92 and 135,821.04

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Solution

The fourth proportional to 220,631.28, 304,576.92 and 135,821.04 is: 187,498.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,631.28 : 304,576.92 = 135,821.04 : x
  2. Step 2: Convert to fraction form
    220,631.28/304,576.92 = 135,821.04/x
  3. Step 3: Cross multiply
    220,631.28x = 304,576.92 × 135,821.04
  4. Step 4: Simplify right side
    220,631.28x = 41,367,954,034.40
  5. Step 5: Solve for x
    x = 41,367,954,034.40/220,631.28
  6. Step 6: Final answer
    x = 187,498.14

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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.