Home / 276,899.81-382,121.96-149,575.42

Finding the Fourth Proportional to 276,899.81, 382,121.96 and 149,575.42

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Solution

The fourth proportional to 276,899.81, 382,121.96 and 149,575.42 is: 206,414.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,899.81 : 382,121.96 = 149,575.42 : x
  2. Step 2: Convert to fraction form
    276,899.81/382,121.96 = 149,575.42/x
  3. Step 3: Cross multiply
    276,899.81x = 382,121.96 × 149,575.42
  4. Step 4: Simplify right side
    276,899.81x = 57,156,050,955.04
  5. Step 5: Solve for x
    x = 57,156,050,955.04/276,899.81
  6. Step 6: Final answer
    x = 206,414.19

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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.