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Finding the Fourth Proportional to 272.28, 410.94 and 272.28

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Solution

The fourth proportional to 272.28, 410.94 and 272.28 is: 410.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.28 : 410.94 = 272.28 : x
  2. Step 2: Convert to fraction form
    272.28/410.94 = 272.28/x
  3. Step 3: Cross multiply
    272.28x = 410.94 × 272.28
  4. Step 4: Simplify right side
    272.28x = 111,890.74
  5. Step 5: Solve for x
    x = 111,890.74/272.28
  6. Step 6: Final answer
    x = 410.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.