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Finding the Fourth Proportional to 171.16, 237.50 and 164.31

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Solution

The fourth proportional to 171.16, 237.50 and 164.31 is: 228.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.16 : 237.50 = 164.31 : x
  2. Step 2: Convert to fraction form
    171.16/237.50 = 164.31/x
  3. Step 3: Cross multiply
    171.16x = 237.50 × 164.31
  4. Step 4: Simplify right side
    171.16x = 39,023.63
  5. Step 5: Solve for x
    x = 39,023.63/171.16
  6. Step 6: Final answer
    x = 228.00

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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.