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Finding the Fourth Proportional to 348.74, 483.50 and 329.30

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Solution

The fourth proportional to 348.74, 483.50 and 329.30 is: 456.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.74 : 483.50 = 329.30 : x
  2. Step 2: Convert to fraction form
    348.74/483.50 = 329.30/x
  3. Step 3: Cross multiply
    348.74x = 483.50 × 329.30
  4. Step 4: Simplify right side
    348.74x = 159,214.90
  5. Step 5: Solve for x
    x = 159,214.90/348.74
  6. Step 6: Final answer
    x = 456.54

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.