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Finding the Fourth Proportional to 206,699.80, 309,790.88 and 88,232.44

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Solution

The fourth proportional to 206,699.80, 309,790.88 and 88,232.44 is: 132,238.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,699.80 : 309,790.88 = 88,232.44 : x
  2. Step 2: Convert to fraction form
    206,699.80/309,790.88 = 88,232.44/x
  3. Step 3: Cross multiply
    206,699.80x = 309,790.88 × 88,232.44
  4. Step 4: Simplify right side
    206,699.80x = 27,333,605,232.15
  5. Step 5: Solve for x
    x = 27,333,605,232.15/206,699.80
  6. Step 6: Final answer
    x = 132,238.18

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1.5x scale

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.