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Finding the Fourth Proportional to 437.85, 603.87 and 371.64

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Solution

The fourth proportional to 437.85, 603.87 and 371.64 is: 512.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.85 : 603.87 = 371.64 : x
  2. Step 2: Convert to fraction form
    437.85/603.87 = 371.64/x
  3. Step 3: Cross multiply
    437.85x = 603.87 × 371.64
  4. Step 4: Simplify right side
    437.85x = 224,422.25
  5. Step 5: Solve for x
    x = 224,422.25/437.85
  6. Step 6: Final answer
    x = 512.56

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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.