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Finding the Fourth Proportional to 207,889.60, 311,339.28 and 132,777.04

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Solution

The fourth proportional to 207,889.60, 311,339.28 and 132,777.04 is: 198,849.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,889.60 : 311,339.28 = 132,777.04 : x
  2. Step 2: Convert to fraction form
    207,889.60/311,339.28 = 132,777.04/x
  3. Step 3: Cross multiply
    207,889.60x = 311,339.28 × 132,777.04
  4. Step 4: Simplify right side
    207,889.60x = 41,338,708,034.13
  5. Step 5: Solve for x
    x = 41,338,708,034.13/207,889.60
  6. Step 6: Final answer
    x = 198,849.33

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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.