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Finding the Fourth Proportional to 581.32, 871.03 and 247.50

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Solution

The fourth proportional to 581.32, 871.03 and 247.50 is: 370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.32 : 871.03 = 247.50 : x
  2. Step 2: Convert to fraction form
    581.32/871.03 = 247.50/x
  3. Step 3: Cross multiply
    581.32x = 871.03 × 247.50
  4. Step 4: Simplify right side
    581.32x = 215,579.93
  5. Step 5: Solve for x
    x = 215,579.93/581.32
  6. Step 6: Final answer
    x = 370.85

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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.