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Finding the Fourth Proportional to 472.99, 652.28 and 323.85

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Solution

The fourth proportional to 472.99, 652.28 and 323.85 is: 446.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.99 : 652.28 = 323.85 : x
  2. Step 2: Convert to fraction form
    472.99/652.28 = 323.85/x
  3. Step 3: Cross multiply
    472.99x = 652.28 × 323.85
  4. Step 4: Simplify right side
    472.99x = 211,240.88
  5. Step 5: Solve for x
    x = 211,240.88/472.99
  6. Step 6: Final answer
    x = 446.61

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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.