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Finding the Fourth Proportional to 441.79, 608.78 and 343.37

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Solution

The fourth proportional to 441.79, 608.78 and 343.37 is: 473.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.79 : 608.78 = 343.37 : x
  2. Step 2: Convert to fraction form
    441.79/608.78 = 343.37/x
  3. Step 3: Cross multiply
    441.79x = 608.78 × 343.37
  4. Step 4: Simplify right side
    441.79x = 209,039.17
  5. Step 5: Solve for x
    x = 209,039.17/441.79
  6. Step 6: Final answer
    x = 473.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.