Home / 206,863.32-310,288.78-57,112.75

Finding the Fourth Proportional to 206,863.32, 310,288.78 and 57,112.75

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Solution

The fourth proportional to 206,863.32, 310,288.78 and 57,112.75 is: 85,667.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,863.32 : 310,288.78 = 57,112.75 : x
  2. Step 2: Convert to fraction form
    206,863.32/310,288.78 = 57,112.75/x
  3. Step 3: Cross multiply
    206,863.32x = 310,288.78 × 57,112.75
  4. Step 4: Simplify right side
    206,863.32x = 17,721,445,519.95
  5. Step 5: Solve for x
    x = 17,721,445,519.95/206,863.32
  6. Step 6: Final answer
    x = 85,667.41

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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.