Home / 204,815.10-307,222.65-120,834.30

Finding the Fourth Proportional to 204,815.10, 307,222.65 and 120,834.30

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Solution

The fourth proportional to 204,815.10, 307,222.65 and 120,834.30 is: 181,251.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,815.10 : 307,222.65 = 120,834.30 : x
  2. Step 2: Convert to fraction form
    204,815.10/307,222.65 = 120,834.30/x
  3. Step 3: Cross multiply
    204,815.10x = 307,222.65 × 120,834.30
  4. Step 4: Simplify right side
    204,815.10x = 37,123,033,856.90
  5. Step 5: Solve for x
    x = 37,123,033,856.90/204,815.10
  6. Step 6: Final answer
    x = 181,251.45

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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.