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Finding the Fourth Proportional to 464.92, 641.01 and 401.92

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Solution

The fourth proportional to 464.92, 641.01 and 401.92 is: 554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.92 : 641.01 = 401.92 : x
  2. Step 2: Convert to fraction form
    464.92/641.01 = 401.92/x
  3. Step 3: Cross multiply
    464.92x = 641.01 × 401.92
  4. Step 4: Simplify right side
    464.92x = 257,634.74
  5. Step 5: Solve for x
    x = 257,634.74/464.92
  6. Step 6: Final answer
    x = 554.15

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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.