Home / 206,865.57-310,292.16-57,115

Finding the Fourth Proportional to 206,865.57, 310,292.16 and 57,115

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Solution

The fourth proportional to 206,865.57, 310,292.16 and 57,115 is: 85,670.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,865.57 : 310,292.16 = 57,115 : x
  2. Step 2: Convert to fraction form
    206,865.57/310,292.16 = 57,115/x
  3. Step 3: Cross multiply
    206,865.57x = 310,292.16 × 57,115
  4. Step 4: Simplify right side
    206,865.57x = 17,722,336,432.83
  5. Step 5: Solve for x
    x = 17,722,336,432.83/206,865.57
  6. Step 6: Final answer
    x = 85,670.79

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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.