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Finding the Fourth Proportional to 275.57, 411.23 and 244.89

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Solution

The fourth proportional to 275.57, 411.23 and 244.89 is: 365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.57 : 411.23 = 244.89 : x
  2. Step 2: Convert to fraction form
    275.57/411.23 = 244.89/x
  3. Step 3: Cross multiply
    275.57x = 411.23 × 244.89
  4. Step 4: Simplify right side
    275.57x = 100,707.35
  5. Step 5: Solve for x
    x = 100,707.35/275.57
  6. Step 6: Final answer
    x = 365.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.