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Finding the Fourth Proportional to 244.40, 336.68 and 229.28

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Solution

The fourth proportional to 244.40, 336.68 and 229.28 is: 315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.40 : 336.68 = 229.28 : x
  2. Step 2: Convert to fraction form
    244.40/336.68 = 229.28/x
  3. Step 3: Cross multiply
    244.40x = 336.68 × 229.28
  4. Step 4: Simplify right side
    244.40x = 77,193.99
  5. Step 5: Solve for x
    x = 77,193.99/244.40
  6. Step 6: Final answer
    x = 315.85

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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.