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Finding the Fourth Proportional to 164.84, 227.31 and 102.63

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Solution

The fourth proportional to 164.84, 227.31 and 102.63 is: 141.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.84 : 227.31 = 102.63 : x
  2. Step 2: Convert to fraction form
    164.84/227.31 = 102.63/x
  3. Step 3: Cross multiply
    164.84x = 227.31 × 102.63
  4. Step 4: Simplify right side
    164.84x = 23,329.29
  5. Step 5: Solve for x
    x = 23,329.29/164.84
  6. Step 6: Final answer
    x = 141.53

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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.