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Finding the Fourth Proportional to 262.84, 363.08 and 228.33

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Solution

The fourth proportional to 262.84, 363.08 and 228.33 is: 315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.84 : 363.08 = 228.33 : x
  2. Step 2: Convert to fraction form
    262.84/363.08 = 228.33/x
  3. Step 3: Cross multiply
    262.84x = 363.08 × 228.33
  4. Step 4: Simplify right side
    262.84x = 82,899.40
  5. Step 5: Solve for x
    x = 82,899.40/262.84
  6. Step 6: Final answer
    x = 315.40

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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.