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Finding the Fourth Proportional to 544.45, 815.89 and 348.84

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Solution

The fourth proportional to 544.45, 815.89 and 348.84 is: 522.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.45 : 815.89 = 348.84 : x
  2. Step 2: Convert to fraction form
    544.45/815.89 = 348.84/x
  3. Step 3: Cross multiply
    544.45x = 815.89 × 348.84
  4. Step 4: Simplify right side
    544.45x = 284,615.07
  5. Step 5: Solve for x
    x = 284,615.07/544.45
  6. Step 6: Final answer
    x = 522.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.