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Finding the Fourth Proportional to 162.07, 243.27 and 108.34

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Solution

The fourth proportional to 162.07, 243.27 and 108.34 is: 162.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.07 : 243.27 = 108.34 : x
  2. Step 2: Convert to fraction form
    162.07/243.27 = 108.34/x
  3. Step 3: Cross multiply
    162.07x = 243.27 × 108.34
  4. Step 4: Simplify right side
    162.07x = 26,355.26
  5. Step 5: Solve for x
    x = 26,355.26/162.07
  6. Step 6: Final answer
    x = 162.62

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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.