Home / 207,301.20-311,017.42-74,178.50

Finding the Fourth Proportional to 207,301.20, 311,017.42 and 74,178.50

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Solution

The fourth proportional to 207,301.20, 311,017.42 and 74,178.50 is: 111,291.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,301.20 : 311,017.42 = 74,178.50 : x
  2. Step 2: Convert to fraction form
    207,301.20/311,017.42 = 74,178.50/x
  3. Step 3: Cross multiply
    207,301.20x = 311,017.42 × 74,178.50
  4. Step 4: Simplify right side
    207,301.20x = 23,070,805,689.47
  5. Step 5: Solve for x
    x = 23,070,805,689.47/207,301.20
  6. Step 6: Final answer
    x = 111,291.23

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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.