Home / 207,508.12-311,359.38-102,269.68

Finding the Fourth Proportional to 207,508.12, 311,359.38 and 102,269.68

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Solution

The fourth proportional to 207,508.12, 311,359.38 and 102,269.68 is: 153,452.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,508.12 : 311,359.38 = 102,269.68 : x
  2. Step 2: Convert to fraction form
    207,508.12/311,359.38 = 102,269.68/x
  3. Step 3: Cross multiply
    207,508.12x = 311,359.38 × 102,269.68
  4. Step 4: Simplify right side
    207,508.12x = 31,842,624,157.60
  5. Step 5: Solve for x
    x = 31,842,624,157.60/207,508.12
  6. Step 6: Final answer
    x = 153,452.42

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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.