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Finding the Fourth Proportional to 164.62, 247.32 and 147.34

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Solution

The fourth proportional to 164.62, 247.32 and 147.34 is: 221.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.62 : 247.32 = 147.34 : x
  2. Step 2: Convert to fraction form
    164.62/247.32 = 147.34/x
  3. Step 3: Cross multiply
    164.62x = 247.32 × 147.34
  4. Step 4: Simplify right side
    164.62x = 36,440.13
  5. Step 5: Solve for x
    x = 36,440.13/164.62
  6. Step 6: Final answer
    x = 221.36

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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.