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Finding the Fourth Proportional to 261,020.72, 360,198.12 and 147,836.72

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Solution

The fourth proportional to 261,020.72, 360,198.12 and 147,836.72 is: 204,008.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,020.72 : 360,198.12 = 147,836.72 : x
  2. Step 2: Convert to fraction form
    261,020.72/360,198.12 = 147,836.72/x
  3. Step 3: Cross multiply
    261,020.72x = 360,198.12 × 147,836.72
  4. Step 4: Simplify right side
    261,020.72x = 53,250,508,610.97
  5. Step 5: Solve for x
    x = 53,250,508,610.97/261,020.72
  6. Step 6: Final answer
    x = 204,008.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.