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Finding the Fourth Proportional to 324.74, 486.62 and 216.14

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Solution

The fourth proportional to 324.74, 486.62 and 216.14 is: 323.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.74 : 486.62 = 216.14 : x
  2. Step 2: Convert to fraction form
    324.74/486.62 = 216.14/x
  3. Step 3: Cross multiply
    324.74x = 486.62 × 216.14
  4. Step 4: Simplify right side
    324.74x = 105,178.05
  5. Step 5: Solve for x
    x = 105,178.05/324.74
  6. Step 6: Final answer
    x = 323.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.