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Finding the Fourth Proportional to 499.92, 690.13 and 334.24

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Solution

The fourth proportional to 499.92, 690.13 and 334.24 is: 461.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.92 : 690.13 = 334.24 : x
  2. Step 2: Convert to fraction form
    499.92/690.13 = 334.24/x
  3. Step 3: Cross multiply
    499.92x = 690.13 × 334.24
  4. Step 4: Simplify right side
    499.92x = 230,669.05
  5. Step 5: Solve for x
    x = 230,669.05/499.92
  6. Step 6: Final answer
    x = 461.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.