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Finding the Fourth Proportional to 437.20, 603.26 and 271.56

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Solution

The fourth proportional to 437.20, 603.26 and 271.56 is: 374.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.20 : 603.26 = 271.56 : x
  2. Step 2: Convert to fraction form
    437.20/603.26 = 271.56/x
  3. Step 3: Cross multiply
    437.20x = 603.26 × 271.56
  4. Step 4: Simplify right side
    437.20x = 163,821.29
  5. Step 5: Solve for x
    x = 163,821.29/437.20
  6. Step 6: Final answer
    x = 374.71

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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.