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Finding the Fourth Proportional to 243.32, 365.55 and 162.32

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Solution

The fourth proportional to 243.32, 365.55 and 162.32 is: 243.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.32 : 365.55 = 162.32 : x
  2. Step 2: Convert to fraction form
    243.32/365.55 = 162.32/x
  3. Step 3: Cross multiply
    243.32x = 365.55 × 162.32
  4. Step 4: Simplify right side
    243.32x = 59,336.08
  5. Step 5: Solve for x
    x = 59,336.08/243.32
  6. Step 6: Final answer
    x = 243.86

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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.