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Finding the Fourth Proportional to 266.36, 366.96 and 228.92

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Solution

The fourth proportional to 266.36, 366.96 and 228.92 is: 315.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.36 : 366.96 = 228.92 : x
  2. Step 2: Convert to fraction form
    266.36/366.96 = 228.92/x
  3. Step 3: Cross multiply
    266.36x = 366.96 × 228.92
  4. Step 4: Simplify right side
    266.36x = 84,004.48
  5. Step 5: Solve for x
    x = 84,004.48/266.36
  6. Step 6: Final answer
    x = 315.38

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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.