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Finding the Fourth Proportional to 206,482.39, 309,836.43 and 80,127.63

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Solution

The fourth proportional to 206,482.39, 309,836.43 and 80,127.63 is: 120,235.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,482.39 : 309,836.43 = 80,127.63 : x
  2. Step 2: Convert to fraction form
    206,482.39/309,836.43 = 80,127.63/x
  3. Step 3: Cross multiply
    206,482.39x = 309,836.43 × 80,127.63
  4. Step 4: Simplify right side
    206,482.39x = 24,826,458,823.56
  5. Step 5: Solve for x
    x = 24,826,458,823.56/206,482.39
  6. Step 6: Final answer
    x = 120,235.24

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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.