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Finding the Fourth Proportional to 349.03, 520.89 and 334.90

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Solution

The fourth proportional to 349.03, 520.89 and 334.90 is: 499.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.03 : 520.89 = 334.90 : x
  2. Step 2: Convert to fraction form
    349.03/520.89 = 334.90/x
  3. Step 3: Cross multiply
    349.03x = 520.89 × 334.90
  4. Step 4: Simplify right side
    349.03x = 174,446.05
  5. Step 5: Solve for x
    x = 174,446.05/349.03
  6. Step 6: Final answer
    x = 499.81

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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.