Home / 217,428.45-325,650.60-137,712.30

Finding the Fourth Proportional to 217,428.45, 325,650.60 and 137,712.30

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Solution

The fourth proportional to 217,428.45, 325,650.60 and 137,712.30 is: 206,256.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,428.45 : 325,650.60 = 137,712.30 : x
  2. Step 2: Convert to fraction form
    217,428.45/325,650.60 = 137,712.30/x
  3. Step 3: Cross multiply
    217,428.45x = 325,650.60 × 137,712.30
  4. Step 4: Simplify right side
    217,428.45x = 44,846,093,122.38
  5. Step 5: Solve for x
    x = 44,846,093,122.38/217,428.45
  6. Step 6: Final answer
    x = 206,256.79

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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.