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Finding the Fourth Proportional to 900.96, 1,350.89 and 352.49

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Solution

The fourth proportional to 900.96, 1,350.89 and 352.49 is: 528.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    900.96 : 1,350.89 = 352.49 : x
  2. Step 2: Convert to fraction form
    900.96/1,350.89 = 352.49/x
  3. Step 3: Cross multiply
    900.96x = 1,350.89 × 352.49
  4. Step 4: Simplify right side
    900.96x = 476,169.34
  5. Step 5: Solve for x
    x = 476,169.34/900.96
  6. Step 6: Final answer
    x = 528.51

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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.