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Finding the Fourth Proportional to 352.16, 485.11 and 269.23

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Solution

The fourth proportional to 352.16, 485.11 and 269.23 is: 370.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.16 : 485.11 = 269.23 : x
  2. Step 2: Convert to fraction form
    352.16/485.11 = 269.23/x
  3. Step 3: Cross multiply
    352.16x = 485.11 × 269.23
  4. Step 4: Simplify right side
    352.16x = 130,608.32
  5. Step 5: Solve for x
    x = 130,608.32/352.16
  6. Step 6: Final answer
    x = 370.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.