Home / 281,561.13-422,403.97-155,136.30

Finding the Fourth Proportional to 281,561.13, 422,403.97 and 155,136.30

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Solution

The fourth proportional to 281,561.13, 422,403.97 and 155,136.30 is: 232,738.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,561.13 : 422,403.97 = 155,136.30 : x
  2. Step 2: Convert to fraction form
    281,561.13/422,403.97 = 155,136.30/x
  3. Step 3: Cross multiply
    281,561.13x = 422,403.97 × 155,136.30
  4. Step 4: Simplify right side
    281,561.13x = 65,530,187,766.46
  5. Step 5: Solve for x
    x = 65,530,187,766.46/281,561.13
  6. Step 6: Final answer
    x = 232,738.76

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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.