Home / 204,945.28-307,522.46-138,245.62

Finding the Fourth Proportional to 204,945.28, 307,522.46 and 138,245.62

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Solution

The fourth proportional to 204,945.28, 307,522.46 and 138,245.62 is: 207,438.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,945.28 : 307,522.46 = 138,245.62 : x
  2. Step 2: Convert to fraction form
    204,945.28/307,522.46 = 138,245.62/x
  3. Step 3: Cross multiply
    204,945.28x = 307,522.46 × 138,245.62
  4. Step 4: Simplify right side
    204,945.28x = 42,513,633,146.63
  5. Step 5: Solve for x
    x = 42,513,633,146.63/204,945.28
  6. Step 6: Final answer
    x = 207,438.95

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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.