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Finding the Fourth Proportional to 580.99, 871.44 and 272.91

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Solution

The fourth proportional to 580.99, 871.44 and 272.91 is: 409.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.99 : 871.44 = 272.91 : x
  2. Step 2: Convert to fraction form
    580.99/871.44 = 272.91/x
  3. Step 3: Cross multiply
    580.99x = 871.44 × 272.91
  4. Step 4: Simplify right side
    580.99x = 237,823.33
  5. Step 5: Solve for x
    x = 237,823.33/580.99
  6. Step 6: Final answer
    x = 409.35

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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.