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Finding the Fourth Proportional to 247,385, 371,076.60 and 89,576.56

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Solution

The fourth proportional to 247,385, 371,076.60 and 89,576.56 is: 134,364.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,385 : 371,076.60 = 89,576.56 : x
  2. Step 2: Convert to fraction form
    247,385/371,076.60 = 89,576.56/x
  3. Step 3: Cross multiply
    247,385x = 371,076.60 × 89,576.56
  4. Step 4: Simplify right side
    247,385x = 33,239,765,324.50
  5. Step 5: Solve for x
    x = 33,239,765,324.50/247,385
  6. Step 6: Final answer
    x = 134,364.51

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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.