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Finding the Fourth Proportional to 162.57, 225.14 and 150.72

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Solution

The fourth proportional to 162.57, 225.14 and 150.72 is: 208.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.57 : 225.14 = 150.72 : x
  2. Step 2: Convert to fraction form
    162.57/225.14 = 150.72/x
  3. Step 3: Cross multiply
    162.57x = 225.14 × 150.72
  4. Step 4: Simplify right side
    162.57x = 33,933.10
  5. Step 5: Solve for x
    x = 33,933.10/162.57
  6. Step 6: Final answer
    x = 208.73

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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.