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Finding the Fourth Proportional to 900.52, 1,351.50 and 352.96

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Solution

The fourth proportional to 900.52, 1,351.50 and 352.96 is: 529.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    900.52 : 1,351.50 = 352.96 : x
  2. Step 2: Convert to fraction form
    900.52/1,351.50 = 352.96/x
  3. Step 3: Cross multiply
    900.52x = 1,351.50 × 352.96
  4. Step 4: Simplify right side
    900.52x = 477,025.44
  5. Step 5: Solve for x
    x = 477,025.44/900.52
  6. Step 6: Final answer
    x = 529.72

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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.