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Finding the Fourth Proportional to 207,512.29, 311,548.29 and 132,778.31

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Solution

The fourth proportional to 207,512.29, 311,548.29 and 132,778.31 is: 199,346.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,512.29 : 311,548.29 = 132,778.31 : x
  2. Step 2: Convert to fraction form
    207,512.29/311,548.29 = 132,778.31/x
  3. Step 3: Cross multiply
    207,512.29x = 311,548.29 × 132,778.31
  4. Step 4: Simplify right side
    207,512.29x = 41,366,855,429.59
  5. Step 5: Solve for x
    x = 41,366,855,429.59/207,512.29
  6. Step 6: Final answer
    x = 199,346.53

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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.