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Finding the Fourth Proportional to 472.30, 650.96 and 406.54

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Solution

The fourth proportional to 472.30, 650.96 and 406.54 is: 560.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.30 : 650.96 = 406.54 : x
  2. Step 2: Convert to fraction form
    472.30/650.96 = 406.54/x
  3. Step 3: Cross multiply
    472.30x = 650.96 × 406.54
  4. Step 4: Simplify right side
    472.30x = 264,635.99
  5. Step 5: Solve for x
    x = 264,635.99/472.30
  6. Step 6: Final answer
    x = 560.32

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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.