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Finding the Fourth Proportional to 513.27, 708.36 and 292.23

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Solution

The fourth proportional to 513.27, 708.36 and 292.23 is: 403.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    513.27 : 708.36 = 292.23 : x
  2. Step 2: Convert to fraction form
    513.27/708.36 = 292.23/x
  3. Step 3: Cross multiply
    513.27x = 708.36 × 292.23
  4. Step 4: Simplify right side
    513.27x = 207,004.04
  5. Step 5: Solve for x
    x = 207,004.04/513.27
  6. Step 6: Final answer
    x = 403.30

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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.