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Finding the Fourth Proportional to 399.04, 550.74 and 333.52

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Solution

The fourth proportional to 399.04, 550.74 and 333.52 is: 460.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.04 : 550.74 = 333.52 : x
  2. Step 2: Convert to fraction form
    399.04/550.74 = 333.52/x
  3. Step 3: Cross multiply
    399.04x = 550.74 × 333.52
  4. Step 4: Simplify right side
    399.04x = 183,682.80
  5. Step 5: Solve for x
    x = 183,682.80/399.04
  6. Step 6: Final answer
    x = 460.31

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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.