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Finding the Fourth Proportional to 351.38, 522.58 and 344.46

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Solution

The fourth proportional to 351.38, 522.58 and 344.46 is: 512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.38 : 522.58 = 344.46 : x
  2. Step 2: Convert to fraction form
    351.38/522.58 = 344.46/x
  3. Step 3: Cross multiply
    351.38x = 522.58 × 344.46
  4. Step 4: Simplify right side
    351.38x = 180,008.34
  5. Step 5: Solve for x
    x = 180,008.34/351.38
  6. Step 6: Final answer
    x = 512.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.