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Finding the Fourth Proportional to 164.66, 248.24 and 155.84

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Solution

The fourth proportional to 164.66, 248.24 and 155.84 is: 234.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.66 : 248.24 = 155.84 : x
  2. Step 2: Convert to fraction form
    164.66/248.24 = 155.84/x
  3. Step 3: Cross multiply
    164.66x = 248.24 × 155.84
  4. Step 4: Simplify right side
    164.66x = 38,685.72
  5. Step 5: Solve for x
    x = 38,685.72/164.66
  6. Step 6: Final answer
    x = 234.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.