Home / 272,974.10-409,898.55-206,489.30

Finding the Fourth Proportional to 272,974.10, 409,898.55 and 206,489.30

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Solution

The fourth proportional to 272,974.10, 409,898.55 and 206,489.30 is: 310,064.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,974.10 : 409,898.55 = 206,489.30 : x
  2. Step 2: Convert to fraction form
    272,974.10/409,898.55 = 206,489.30/x
  3. Step 3: Cross multiply
    272,974.10x = 409,898.55 × 206,489.30
  4. Step 4: Simplify right side
    272,974.10x = 84,639,664,660.52
  5. Step 5: Solve for x
    x = 84,639,664,660.52/272,974.10
  6. Step 6: Final answer
    x = 310,064.82

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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.