Home / 220,589.46-304,325.10-129,801.42

Finding the Fourth Proportional to 220,589.46, 304,325.10 and 129,801.42

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Solution

The fourth proportional to 220,589.46, 304,325.10 and 129,801.42 is: 179,073.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,589.46 : 304,325.10 = 129,801.42 : x
  2. Step 2: Convert to fraction form
    220,589.46/304,325.10 = 129,801.42/x
  3. Step 3: Cross multiply
    220,589.46x = 304,325.10 × 129,801.42
  4. Step 4: Simplify right side
    220,589.46x = 39,501,830,121.64
  5. Step 5: Solve for x
    x = 39,501,830,121.64/220,589.46
  6. Step 6: Final answer
    x = 179,073.97

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1.5x scale

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.