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Finding the Fourth Proportional to 334.31, 501.65 and 163.31

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Solution

The fourth proportional to 334.31, 501.65 and 163.31 is: 245.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.31 : 501.65 = 163.31 : x
  2. Step 2: Convert to fraction form
    334.31/501.65 = 163.31/x
  3. Step 3: Cross multiply
    334.31x = 501.65 × 163.31
  4. Step 4: Simplify right side
    334.31x = 81,926.12
  5. Step 5: Solve for x
    x = 81,926.12/334.31
  6. Step 6: Final answer
    x = 245.06

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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.