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Finding the Fourth Proportional to 262.77, 363.08 and 216.11

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Solution

The fourth proportional to 262.77, 363.08 and 216.11 is: 298.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.77 : 363.08 = 216.11 : x
  2. Step 2: Convert to fraction form
    262.77/363.08 = 216.11/x
  3. Step 3: Cross multiply
    262.77x = 363.08 × 216.11
  4. Step 4: Simplify right side
    262.77x = 78,463.81
  5. Step 5: Solve for x
    x = 78,463.81/262.77
  6. Step 6: Final answer
    x = 298.60

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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.