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Finding the Fourth Proportional to 437.79, 605.04 and 350.31

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Solution

The fourth proportional to 437.79, 605.04 and 350.31 is: 484.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.79 : 605.04 = 350.31 : x
  2. Step 2: Convert to fraction form
    437.79/605.04 = 350.31/x
  3. Step 3: Cross multiply
    437.79x = 605.04 × 350.31
  4. Step 4: Simplify right side
    437.79x = 211,951.56
  5. Step 5: Solve for x
    x = 211,951.56/437.79
  6. Step 6: Final answer
    x = 484.14

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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.