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Finding the Fourth Proportional to 259,160.28, 388,738.87 and 67,034.72

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Solution

The fourth proportional to 259,160.28, 388,738.87 and 67,034.72 is: 100,551.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,160.28 : 388,738.87 = 67,034.72 : x
  2. Step 2: Convert to fraction form
    259,160.28/388,738.87 = 67,034.72/x
  3. Step 3: Cross multiply
    259,160.28x = 388,738.87 × 67,034.72
  4. Step 4: Simplify right side
    259,160.28x = 26,059,001,303.57
  5. Step 5: Solve for x
    x = 26,059,001,303.57/259,160.28
  6. Step 6: Final answer
    x = 100,551.68

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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.