Home / 206,460.20-309,872.55-122,114.90

Finding the Fourth Proportional to 206,460.20, 309,872.55 and 122,114.90

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Solution

The fourth proportional to 206,460.20, 309,872.55 and 122,114.90 is: 183,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,460.20 : 309,872.55 = 122,114.90 : x
  2. Step 2: Convert to fraction form
    206,460.20/309,872.55 = 122,114.90/x
  3. Step 3: Cross multiply
    206,460.20x = 309,872.55 × 122,114.90
  4. Step 4: Simplify right side
    206,460.20x = 37,840,055,456.00
  5. Step 5: Solve for x
    x = 37,840,055,456.00/206,460.20
  6. Step 6: Final answer
    x = 183,280.15

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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.