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Finding the Fourth Proportional to 528.24, 729 and 295.44

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Solution

The fourth proportional to 528.24, 729 and 295.44 is: 407.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.24 : 729 = 295.44 : x
  2. Step 2: Convert to fraction form
    528.24/729 = 295.44/x
  3. Step 3: Cross multiply
    528.24x = 729 × 295.44
  4. Step 4: Simplify right side
    528.24x = 215,375.76
  5. Step 5: Solve for x
    x = 215,375.76/528.24
  6. Step 6: Final answer
    x = 407.72

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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.