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Finding the Fourth Proportional to 472.28, 651.83 and 353.24

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Solution

The fourth proportional to 472.28, 651.83 and 353.24 is: 487.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.28 : 651.83 = 353.24 : x
  2. Step 2: Convert to fraction form
    472.28/651.83 = 353.24/x
  3. Step 3: Cross multiply
    472.28x = 651.83 × 353.24
  4. Step 4: Simplify right side
    472.28x = 230,254.94
  5. Step 5: Solve for x
    x = 230,254.94/472.28
  6. Step 6: Final answer
    x = 487.54

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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.