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Finding the Fourth Proportional to 474.69, 654.33 and 376.26

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Solution

The fourth proportional to 474.69, 654.33 and 376.26 is: 518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.69 : 654.33 = 376.26 : x
  2. Step 2: Convert to fraction form
    474.69/654.33 = 376.26/x
  3. Step 3: Cross multiply
    474.69x = 654.33 × 376.26
  4. Step 4: Simplify right side
    474.69x = 246,198.21
  5. Step 5: Solve for x
    x = 246,198.21/474.69
  6. Step 6: Final answer
    x = 518.65

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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.