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Finding the Fourth Proportional to 162.36, 225.63 and 160.38

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Solution

The fourth proportional to 162.36, 225.63 and 160.38 is: 222.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.36 : 225.63 = 160.38 : x
  2. Step 2: Convert to fraction form
    162.36/225.63 = 160.38/x
  3. Step 3: Cross multiply
    162.36x = 225.63 × 160.38
  4. Step 4: Simplify right side
    162.36x = 36,186.54
  5. Step 5: Solve for x
    x = 36,186.54/162.36
  6. Step 6: Final answer
    x = 222.88

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.