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Finding the Fourth Proportional to 901.54, 1,352.28 and 252.28

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Solution

The fourth proportional to 901.54, 1,352.28 and 252.28 is: 378.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.54 : 1,352.28 = 252.28 : x
  2. Step 2: Convert to fraction form
    901.54/1,352.28 = 252.28/x
  3. Step 3: Cross multiply
    901.54x = 1,352.28 × 252.28
  4. Step 4: Simplify right side
    901.54x = 341,153.20
  5. Step 5: Solve for x
    x = 341,153.20/901.54
  6. Step 6: Final answer
    x = 378.41

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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.