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Finding the Fourth Proportional to 580.63, 871.19 and 238.87

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Solution

The fourth proportional to 580.63, 871.19 and 238.87 is: 358.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.63 : 871.19 = 238.87 : x
  2. Step 2: Convert to fraction form
    580.63/871.19 = 238.87/x
  3. Step 3: Cross multiply
    580.63x = 871.19 × 238.87
  4. Step 4: Simplify right side
    580.63x = 208,101.16
  5. Step 5: Solve for x
    x = 208,101.16/580.63
  6. Step 6: Final answer
    x = 358.41

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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.