Home / 206,538.60-309,939-88,210.92

Finding the Fourth Proportional to 206,538.60, 309,939 and 88,210.92

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Solution

The fourth proportional to 206,538.60, 309,939 and 88,210.92 is: 132,372.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,538.60 : 309,939 = 88,210.92 : x
  2. Step 2: Convert to fraction form
    206,538.60/309,939 = 88,210.92/x
  3. Step 3: Cross multiply
    206,538.60x = 309,939 × 88,210.92
  4. Step 4: Simplify right side
    206,538.60x = 27,340,004,333.88
  5. Step 5: Solve for x
    x = 27,340,004,333.88/206,538.60
  6. Step 6: Final answer
    x = 132,372.37

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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.