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Finding the Fourth Proportional to 362.81, 544.59 and 216.56

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Solution

The fourth proportional to 362.81, 544.59 and 216.56 is: 325.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.81 : 544.59 = 216.56 : x
  2. Step 2: Convert to fraction form
    362.81/544.59 = 216.56/x
  3. Step 3: Cross multiply
    362.81x = 544.59 × 216.56
  4. Step 4: Simplify right side
    362.81x = 117,933.69
  5. Step 5: Solve for x
    x = 117,933.69/362.81
  6. Step 6: Final answer
    x = 325.06

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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.