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Finding the Fourth Proportional to 352.47, 528.26 and 169.81

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Solution

The fourth proportional to 352.47, 528.26 and 169.81 is: 254.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.47 : 528.26 = 169.81 : x
  2. Step 2: Convert to fraction form
    352.47/528.26 = 169.81/x
  3. Step 3: Cross multiply
    352.47x = 528.26 × 169.81
  4. Step 4: Simplify right side
    352.47x = 89,702.98
  5. Step 5: Solve for x
    x = 89,702.98/352.47
  6. Step 6: Final answer
    x = 254.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.