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Finding the Fourth Proportional to 472.56, 651.94 and 325

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Solution

The fourth proportional to 472.56, 651.94 and 325 is: 448.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.56 : 651.94 = 325 : x
  2. Step 2: Convert to fraction form
    472.56/651.94 = 325/x
  3. Step 3: Cross multiply
    472.56x = 651.94 × 325
  4. Step 4: Simplify right side
    472.56x = 211,880.50
  5. Step 5: Solve for x
    x = 211,880.50/472.56
  6. Step 6: Final answer
    x = 448.37

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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.