Home / 204,307.38-306,716.22-138,041.28

Finding the Fourth Proportional to 204,307.38, 306,716.22 and 138,041.28

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Solution

The fourth proportional to 204,307.38, 306,716.22 and 138,041.28 is: 207,234.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,307.38 : 306,716.22 = 138,041.28 : x
  2. Step 2: Convert to fraction form
    204,307.38/306,716.22 = 138,041.28/x
  3. Step 3: Cross multiply
    204,307.38x = 306,716.22 × 138,041.28
  4. Step 4: Simplify right side
    204,307.38x = 42,339,499,605.56
  5. Step 5: Solve for x
    x = 42,339,499,605.56/204,307.38
  6. Step 6: Final answer
    x = 207,234.31

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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.