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Finding the Fourth Proportional to 215,745.56, 323,618.06 and 57,974.02

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Solution

The fourth proportional to 215,745.56, 323,618.06 and 57,974.02 is: 86,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,745.56 : 323,618.06 = 57,974.02 : x
  2. Step 2: Convert to fraction form
    215,745.56/323,618.06 = 57,974.02/x
  3. Step 3: Cross multiply
    215,745.56x = 323,618.06 × 57,974.02
  4. Step 4: Simplify right side
    215,745.56x = 18,761,438,264.71
  5. Step 5: Solve for x
    x = 18,761,438,264.71/215,745.56
  6. Step 6: Final answer
    x = 86,960.95

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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.