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Finding the Fourth Proportional to 348.30, 524.91 and 331.83

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Solution

The fourth proportional to 348.30, 524.91 and 331.83 is: 500.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.30 : 524.91 = 331.83 : x
  2. Step 2: Convert to fraction form
    348.30/524.91 = 331.83/x
  3. Step 3: Cross multiply
    348.30x = 524.91 × 331.83
  4. Step 4: Simplify right side
    348.30x = 174,182.13
  5. Step 5: Solve for x
    x = 174,182.13/348.30
  6. Step 6: Final answer
    x = 500.09

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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.