Home / 281,505.17-422,298.94-81,799.61

Finding the Fourth Proportional to 281,505.17, 422,298.94 and 81,799.61

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Solution

The fourth proportional to 281,505.17, 422,298.94 and 81,799.61 is: 122,711.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,505.17 : 422,298.94 = 81,799.61 : x
  2. Step 2: Convert to fraction form
    281,505.17/422,298.94 = 81,799.61/x
  3. Step 3: Cross multiply
    281,505.17x = 422,298.94 × 81,799.61
  4. Step 4: Simplify right side
    281,505.17x = 34,543,887,926.79
  5. Step 5: Solve for x
    x = 34,543,887,926.79/281,505.17
  6. Step 6: Final answer
    x = 122,711.38

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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.