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Finding the Fourth Proportional to 529.26, 729.48 and 363.18

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Solution

The fourth proportional to 529.26, 729.48 and 363.18 is: 500.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.26 : 729.48 = 363.18 : x
  2. Step 2: Convert to fraction form
    529.26/729.48 = 363.18/x
  3. Step 3: Cross multiply
    529.26x = 729.48 × 363.18
  4. Step 4: Simplify right side
    529.26x = 264,932.55
  5. Step 5: Solve for x
    x = 264,932.55/529.26
  6. Step 6: Final answer
    x = 500.57

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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.