Home / 206,836.30-309,926.40-136,633.60

Finding the Fourth Proportional to 206,836.30, 309,926.40 and 136,633.60

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Solution

The fourth proportional to 206,836.30, 309,926.40 and 136,633.60 is: 204,733.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,836.30 : 309,926.40 = 136,633.60 : x
  2. Step 2: Convert to fraction form
    206,836.30/309,926.40 = 136,633.60/x
  3. Step 3: Cross multiply
    206,836.30x = 309,926.40 × 136,633.60
  4. Step 4: Simplify right side
    206,836.30x = 42,346,359,767.04
  5. Step 5: Solve for x
    x = 42,346,359,767.04/206,836.30
  6. Step 6: Final answer
    x = 204,733.69

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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.