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Finding the Fourth Proportional to 473.83, 654.09 and 306.02

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Solution

The fourth proportional to 473.83, 654.09 and 306.02 is: 422.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.83 : 654.09 = 306.02 : x
  2. Step 2: Convert to fraction form
    473.83/654.09 = 306.02/x
  3. Step 3: Cross multiply
    473.83x = 654.09 × 306.02
  4. Step 4: Simplify right side
    473.83x = 200,164.62
  5. Step 5: Solve for x
    x = 200,164.62/473.83
  6. Step 6: Final answer
    x = 422.44

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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.