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Finding the Fourth Proportional to 397.13, 550.58 and 375.26

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Solution

The fourth proportional to 397.13, 550.58 and 375.26 is: 520.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.13 : 550.58 = 375.26 : x
  2. Step 2: Convert to fraction form
    397.13/550.58 = 375.26/x
  3. Step 3: Cross multiply
    397.13x = 550.58 × 375.26
  4. Step 4: Simplify right side
    397.13x = 206,606.02
  5. Step 5: Solve for x
    x = 206,606.02/397.13
  6. Step 6: Final answer
    x = 520.25

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.