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Finding the Fourth Proportional to 472.89, 651.62 and 325.27

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Solution

The fourth proportional to 472.89, 651.62 and 325.27 is: 448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.89 : 651.62 = 325.27 : x
  2. Step 2: Convert to fraction form
    472.89/651.62 = 325.27/x
  3. Step 3: Cross multiply
    472.89x = 651.62 × 325.27
  4. Step 4: Simplify right side
    472.89x = 211,949.48
  5. Step 5: Solve for x
    x = 211,949.48/472.89
  6. Step 6: Final answer
    x = 448.20

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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.