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Finding the Fourth Proportional to 513.29, 708.32 and 292.30

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Solution

The fourth proportional to 513.29, 708.32 and 292.30 is: 403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    513.29 : 708.32 = 292.30 : x
  2. Step 2: Convert to fraction form
    513.29/708.32 = 292.30/x
  3. Step 3: Cross multiply
    513.29x = 708.32 × 292.30
  4. Step 4: Simplify right side
    513.29x = 207,036.93
  5. Step 5: Solve for x
    x = 207,036.93/513.29
  6. Step 6: Final answer
    x = 403.35

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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.