Home / 207,310.20-311,030.92-74,187.50

Finding the Fourth Proportional to 207,310.20, 311,030.92 and 74,187.50

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Solution

The fourth proportional to 207,310.20, 311,030.92 and 74,187.50 is: 111,304.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,310.20 : 311,030.92 = 74,187.50 : x
  2. Step 2: Convert to fraction form
    207,310.20/311,030.92 = 74,187.50/x
  3. Step 3: Cross multiply
    207,310.20x = 311,030.92 × 74,187.50
  4. Step 4: Simplify right side
    207,310.20x = 23,074,606,377.50
  5. Step 5: Solve for x
    x = 23,074,606,377.50/207,310.20
  6. Step 6: Final answer
    x = 111,304.73

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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.