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Finding the Fourth Proportional to 244.90, 337.28 and 215.28

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Solution

The fourth proportional to 244.90, 337.28 and 215.28 is: 296.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.90 : 337.28 = 215.28 : x
  2. Step 2: Convert to fraction form
    244.90/337.28 = 215.28/x
  3. Step 3: Cross multiply
    244.90x = 337.28 × 215.28
  4. Step 4: Simplify right side
    244.90x = 72,609.81
  5. Step 5: Solve for x
    x = 72,609.81/244.90
  6. Step 6: Final answer
    x = 296.49

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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.