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Finding the Fourth Proportional to 166.88, 228.34 and 164.40

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Solution

The fourth proportional to 166.88, 228.34 and 164.40 is: 224.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.88 : 228.34 = 164.40 : x
  2. Step 2: Convert to fraction form
    166.88/228.34 = 164.40/x
  3. Step 3: Cross multiply
    166.88x = 228.34 × 164.40
  4. Step 4: Simplify right side
    166.88x = 37,539.10
  5. Step 5: Solve for x
    x = 37,539.10/166.88
  6. Step 6: Final answer
    x = 224.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.