Home / 215,744.10-323,616.15-206,643.30

Finding the Fourth Proportional to 215,744.10, 323,616.15 and 206,643.30

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Solution

The fourth proportional to 215,744.10, 323,616.15 and 206,643.30 is: 309,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,744.10 : 323,616.15 = 206,643.30 : x
  2. Step 2: Convert to fraction form
    215,744.10/323,616.15 = 206,643.30/x
  3. Step 3: Cross multiply
    215,744.10x = 323,616.15 × 206,643.30
  4. Step 4: Simplify right side
    215,744.10x = 66,873,109,169.30
  5. Step 5: Solve for x
    x = 66,873,109,169.30/215,744.10
  6. Step 6: Final answer
    x = 309,964.95

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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.