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Finding the Fourth Proportional to 348.12, 518.49 and 341.64

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Solution

The fourth proportional to 348.12, 518.49 and 341.64 is: 508.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.12 : 518.49 = 341.64 : x
  2. Step 2: Convert to fraction form
    348.12/518.49 = 341.64/x
  3. Step 3: Cross multiply
    348.12x = 518.49 × 341.64
  4. Step 4: Simplify right side
    348.12x = 177,136.92
  5. Step 5: Solve for x
    x = 177,136.92/348.12
  6. Step 6: Final answer
    x = 508.84

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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.