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Finding the Fourth Proportional to 437.45, 600.98 and 391.43

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Solution

The fourth proportional to 437.45, 600.98 and 391.43 is: 537.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.45 : 600.98 = 391.43 : x
  2. Step 2: Convert to fraction form
    437.45/600.98 = 391.43/x
  3. Step 3: Cross multiply
    437.45x = 600.98 × 391.43
  4. Step 4: Simplify right side
    437.45x = 235,236.64
  5. Step 5: Solve for x
    x = 235,236.64/437.45
  6. Step 6: Final answer
    x = 537.75

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.