Home / 206,439.12-309,710.40-58,695.12

Finding the Fourth Proportional to 206,439.12, 309,710.40 and 58,695.12

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Solution

The fourth proportional to 206,439.12, 309,710.40 and 58,695.12 is: 88,057.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,439.12 : 309,710.40 = 58,695.12 : x
  2. Step 2: Convert to fraction form
    206,439.12/309,710.40 = 58,695.12/x
  3. Step 3: Cross multiply
    206,439.12x = 309,710.40 × 58,695.12
  4. Step 4: Simplify right side
    206,439.12x = 18,178,489,093.25
  5. Step 5: Solve for x
    x = 18,178,489,093.25/206,439.12
  6. Step 6: Final answer
    x = 88,057.39

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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.