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Finding the Fourth Proportional to 324.81, 448.23 and 177.45

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Solution

The fourth proportional to 324.81, 448.23 and 177.45 is: 244.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.81 : 448.23 = 177.45 : x
  2. Step 2: Convert to fraction form
    324.81/448.23 = 177.45/x
  3. Step 3: Cross multiply
    324.81x = 448.23 × 177.45
  4. Step 4: Simplify right side
    324.81x = 79,539.92
  5. Step 5: Solve for x
    x = 79,539.92/324.81
  6. Step 6: Final answer
    x = 244.88

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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.