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Finding the Fourth Proportional to 474.96, 655.52 and 300.36

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Solution

The fourth proportional to 474.96, 655.52 and 300.36 is: 414.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.96 : 655.52 = 300.36 : x
  2. Step 2: Convert to fraction form
    474.96/655.52 = 300.36/x
  3. Step 3: Cross multiply
    474.96x = 655.52 × 300.36
  4. Step 4: Simplify right side
    474.96x = 196,891.99
  5. Step 5: Solve for x
    x = 196,891.99/474.96
  6. Step 6: Final answer
    x = 414.54

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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.