Home / 256,974.28-385,540.30-114,939.06

Finding the Fourth Proportional to 256,974.28, 385,540.30 and 114,939.06

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Solution

The fourth proportional to 256,974.28, 385,540.30 and 114,939.06 is: 172,443.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,974.28 : 385,540.30 = 114,939.06 : x
  2. Step 2: Convert to fraction form
    256,974.28/385,540.30 = 114,939.06/x
  3. Step 3: Cross multiply
    256,974.28x = 385,540.30 × 114,939.06
  4. Step 4: Simplify right side
    256,974.28x = 44,313,639,674.12
  5. Step 5: Solve for x
    x = 44,313,639,674.12/256,974.28
  6. Step 6: Final answer
    x = 172,443.87

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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.