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Finding the Fourth Proportional to 471.53, 707.25 and 163.39

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Solution

The fourth proportional to 471.53, 707.25 and 163.39 is: 245.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.53 : 707.25 = 163.39 : x
  2. Step 2: Convert to fraction form
    471.53/707.25 = 163.39/x
  3. Step 3: Cross multiply
    471.53x = 707.25 × 163.39
  4. Step 4: Simplify right side
    471.53x = 115,557.58
  5. Step 5: Solve for x
    x = 115,557.58/471.53
  6. Step 6: Final answer
    x = 245.07

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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.