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Finding the Fourth Proportional to 262.45, 361.99 and 229.65

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Solution

The fourth proportional to 262.45, 361.99 and 229.65 is: 316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.45 : 361.99 = 229.65 : x
  2. Step 2: Convert to fraction form
    262.45/361.99 = 229.65/x
  3. Step 3: Cross multiply
    262.45x = 361.99 × 229.65
  4. Step 4: Simplify right side
    262.45x = 83,131.00
  5. Step 5: Solve for x
    x = 83,131.00/262.45
  6. Step 6: Final answer
    x = 316.75

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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.