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Finding the Fourth Proportional to 352.22, 527.60 and 283.40

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Solution

The fourth proportional to 352.22, 527.60 and 283.40 is: 424.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.22 : 527.60 = 283.40 : x
  2. Step 2: Convert to fraction form
    352.22/527.60 = 283.40/x
  3. Step 3: Cross multiply
    352.22x = 527.60 × 283.40
  4. Step 4: Simplify right side
    352.22x = 149,517.79
  5. Step 5: Solve for x
    x = 149,517.79/352.22
  6. Step 6: Final answer
    x = 424.51

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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.