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Finding the Fourth Proportional to 207,562.56, 311,387.58 and 67,310.28

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Solution

The fourth proportional to 207,562.56, 311,387.58 and 67,310.28 is: 100,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,562.56 : 311,387.58 = 67,310.28 : x
  2. Step 2: Convert to fraction form
    207,562.56/311,387.58 = 67,310.28/x
  3. Step 3: Cross multiply
    207,562.56x = 311,387.58 × 67,310.28
  4. Step 4: Simplify right side
    207,562.56x = 20,959,585,198.32
  5. Step 5: Solve for x
    x = 20,959,585,198.32/207,562.56
  6. Step 6: Final answer
    x = 100,979.60

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1.5x scale

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.