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Finding the Fourth Proportional to 437.55, 603.74 and 269.44

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Solution

The fourth proportional to 437.55, 603.74 and 269.44 is: 371.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.55 : 603.74 = 269.44 : x
  2. Step 2: Convert to fraction form
    437.55/603.74 = 269.44/x
  3. Step 3: Cross multiply
    437.55x = 603.74 × 269.44
  4. Step 4: Simplify right side
    437.55x = 162,671.71
  5. Step 5: Solve for x
    x = 162,671.71/437.55
  6. Step 6: Final answer
    x = 371.78

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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.