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Finding the Fourth Proportional to 474.54, 655.02 and 299.94

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Solution

The fourth proportional to 474.54, 655.02 and 299.94 is: 414.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.54 : 655.02 = 299.94 : x
  2. Step 2: Convert to fraction form
    474.54/655.02 = 299.94/x
  3. Step 3: Cross multiply
    474.54x = 655.02 × 299.94
  4. Step 4: Simplify right side
    474.54x = 196,466.70
  5. Step 5: Solve for x
    x = 196,466.70/474.54
  6. Step 6: Final answer
    x = 414.02

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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.