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Finding the Fourth Proportional to 474.09, 654.01 and 308.32

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Solution

The fourth proportional to 474.09, 654.01 and 308.32 is: 425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.09 : 654.01 = 308.32 : x
  2. Step 2: Convert to fraction form
    474.09/654.01 = 308.32/x
  3. Step 3: Cross multiply
    474.09x = 654.01 × 308.32
  4. Step 4: Simplify right side
    474.09x = 201,644.36
  5. Step 5: Solve for x
    x = 201,644.36/474.09
  6. Step 6: Final answer
    x = 425.33

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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.