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Finding the Fourth Proportional to 366.93, 549.71 and 218.35

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Solution

The fourth proportional to 366.93, 549.71 and 218.35 is: 327.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.93 : 549.71 = 218.35 : x
  2. Step 2: Convert to fraction form
    366.93/549.71 = 218.35/x
  3. Step 3: Cross multiply
    366.93x = 549.71 × 218.35
  4. Step 4: Simplify right side
    366.93x = 120,029.18
  5. Step 5: Solve for x
    x = 120,029.18/366.93
  6. Step 6: Final answer
    x = 327.12

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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.