Home / 206,862.32-310,287.28-57,111.75

Finding the Fourth Proportional to 206,862.32, 310,287.28 and 57,111.75

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Solution

The fourth proportional to 206,862.32, 310,287.28 and 57,111.75 is: 85,665.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,862.32 : 310,287.28 = 57,111.75 : x
  2. Step 2: Convert to fraction form
    206,862.32/310,287.28 = 57,111.75/x
  3. Step 3: Cross multiply
    206,862.32x = 310,287.28 × 57,111.75
  4. Step 4: Simplify right side
    206,862.32x = 17,721,049,563.54
  5. Step 5: Solve for x
    x = 17,721,049,563.54/206,862.32
  6. Step 6: Final answer
    x = 85,665.91

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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.