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Finding the Fourth Proportional to 164.31, 246.68 and 133.94

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Solution

The fourth proportional to 164.31, 246.68 and 133.94 is: 201.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.31 : 246.68 = 133.94 : x
  2. Step 2: Convert to fraction form
    164.31/246.68 = 133.94/x
  3. Step 3: Cross multiply
    164.31x = 246.68 × 133.94
  4. Step 4: Simplify right side
    164.31x = 33,038.42
  5. Step 5: Solve for x
    x = 33,038.42/164.31
  6. Step 6: Final answer
    x = 201.07

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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.