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Finding the Fourth Proportional to 216.15, 297.93 and 180.73

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Solution

The fourth proportional to 216.15, 297.93 and 180.73 is: 249.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.15 : 297.93 = 180.73 : x
  2. Step 2: Convert to fraction form
    216.15/297.93 = 180.73/x
  3. Step 3: Cross multiply
    216.15x = 297.93 × 180.73
  4. Step 4: Simplify right side
    216.15x = 53,844.89
  5. Step 5: Solve for x
    x = 53,844.89/216.15
  6. Step 6: Final answer
    x = 249.11

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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.