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Finding the Fourth Proportional to 400.64, 550.24 and 335.04

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Solution

The fourth proportional to 400.64, 550.24 and 335.04 is: 460.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.64 : 550.24 = 335.04 : x
  2. Step 2: Convert to fraction form
    400.64/550.24 = 335.04/x
  3. Step 3: Cross multiply
    400.64x = 550.24 × 335.04
  4. Step 4: Simplify right side
    400.64x = 184,352.41
  5. Step 5: Solve for x
    x = 184,352.41/400.64
  6. Step 6: Final answer
    x = 460.14

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.