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Finding the Fourth Proportional to 361.79, 544.92 and 344.51

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Solution

The fourth proportional to 361.79, 544.92 and 344.51 is: 518.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.79 : 544.92 = 344.51 : x
  2. Step 2: Convert to fraction form
    361.79/544.92 = 344.51/x
  3. Step 3: Cross multiply
    361.79x = 544.92 × 344.51
  4. Step 4: Simplify right side
    361.79x = 187,730.39
  5. Step 5: Solve for x
    x = 187,730.39/361.79
  6. Step 6: Final answer
    x = 518.89

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.