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Finding the Fourth Proportional to 253.44, 348.24 and 229.14

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Solution

The fourth proportional to 253.44, 348.24 and 229.14 is: 314.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.44 : 348.24 = 229.14 : x
  2. Step 2: Convert to fraction form
    253.44/348.24 = 229.14/x
  3. Step 3: Cross multiply
    253.44x = 348.24 × 229.14
  4. Step 4: Simplify right side
    253.44x = 79,795.71
  5. Step 5: Solve for x
    x = 79,795.71/253.44
  6. Step 6: Final answer
    x = 314.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.