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Finding the Fourth Proportional to 399.81, 599.00 and 334.74

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Solution

The fourth proportional to 399.81, 599.00 and 334.74 is: 501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.81 : 599.00 = 334.74 : x
  2. Step 2: Convert to fraction form
    399.81/599.00 = 334.74/x
  3. Step 3: Cross multiply
    399.81x = 599.00 × 334.74
  4. Step 4: Simplify right side
    399.81x = 200,507.59
  5. Step 5: Solve for x
    x = 200,507.59/399.81
  6. Step 6: Final answer
    x = 501.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.