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Finding the Fourth Proportional to 349.10, 521.11 and 333.30

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Solution

The fourth proportional to 349.10, 521.11 and 333.30 is: 497.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.10 : 521.11 = 333.30 : x
  2. Step 2: Convert to fraction form
    349.10/521.11 = 333.30/x
  3. Step 3: Cross multiply
    349.10x = 521.11 × 333.30
  4. Step 4: Simplify right side
    349.10x = 173,685.96
  5. Step 5: Solve for x
    x = 173,685.96/349.10
  6. Step 6: Final answer
    x = 497.52

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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.