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Finding the Fourth Proportional to 352.63, 529.10 and 147.24

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Solution

The fourth proportional to 352.63, 529.10 and 147.24 is: 220.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.63 : 529.10 = 147.24 : x
  2. Step 2: Convert to fraction form
    352.63/529.10 = 147.24/x
  3. Step 3: Cross multiply
    352.63x = 529.10 × 147.24
  4. Step 4: Simplify right side
    352.63x = 77,904.68
  5. Step 5: Solve for x
    x = 77,904.68/352.63
  6. Step 6: Final answer
    x = 220.92

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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.