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Finding the Fourth Proportional to 517.27, 713.60 and 296.14

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Solution

The fourth proportional to 517.27, 713.60 and 296.14 is: 408.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.27 : 713.60 = 296.14 : x
  2. Step 2: Convert to fraction form
    517.27/713.60 = 296.14/x
  3. Step 3: Cross multiply
    517.27x = 713.60 × 296.14
  4. Step 4: Simplify right side
    517.27x = 211,325.50
  5. Step 5: Solve for x
    x = 211,325.50/517.27
  6. Step 6: Final answer
    x = 408.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.