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Finding the Fourth Proportional to 462.03, 693.21 and 218.37

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Solution

The fourth proportional to 462.03, 693.21 and 218.37 is: 327.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.03 : 693.21 = 218.37 : x
  2. Step 2: Convert to fraction form
    462.03/693.21 = 218.37/x
  3. Step 3: Cross multiply
    462.03x = 693.21 × 218.37
  4. Step 4: Simplify right side
    462.03x = 151,376.27
  5. Step 5: Solve for x
    x = 151,376.27/462.03
  6. Step 6: Final answer
    x = 327.63

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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.