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Finding the Fourth Proportional to 532.66, 793.76 and 515.26

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Solution

The fourth proportional to 532.66, 793.76 and 515.26 is: 767.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.66 : 793.76 = 515.26 : x
  2. Step 2: Convert to fraction form
    532.66/793.76 = 515.26/x
  3. Step 3: Cross multiply
    532.66x = 793.76 × 515.26
  4. Step 4: Simplify right side
    532.66x = 408,992.78
  5. Step 5: Solve for x
    x = 408,992.78/532.66
  6. Step 6: Final answer
    x = 767.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.