Home / 266,028.47-399,049.59-76,481.18

Finding the Fourth Proportional to 266,028.47, 399,049.59 and 76,481.18

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Solution

The fourth proportional to 266,028.47, 399,049.59 and 76,481.18 is: 114,723.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,028.47 : 399,049.59 = 76,481.18 : x
  2. Step 2: Convert to fraction form
    266,028.47/399,049.59 = 76,481.18/x
  3. Step 3: Cross multiply
    266,028.47x = 399,049.59 × 76,481.18
  4. Step 4: Simplify right side
    266,028.47x = 30,519,781,526.47
  5. Step 5: Solve for x
    x = 30,519,781,526.47/266,028.47
  6. Step 6: Final answer
    x = 114,723.74

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1.5x scale

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.