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Finding the Fourth Proportional to 474.56, 655.20 and 363.83

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Solution

The fourth proportional to 474.56, 655.20 and 363.83 is: 502.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.56 : 655.20 = 363.83 : x
  2. Step 2: Convert to fraction form
    474.56/655.20 = 363.83/x
  3. Step 3: Cross multiply
    474.56x = 655.20 × 363.83
  4. Step 4: Simplify right side
    474.56x = 238,378.87
  5. Step 5: Solve for x
    x = 238,378.87/474.56
  6. Step 6: Final answer
    x = 502.31

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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.