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Finding the Fourth Proportional to 464.40, 641.07 and 333.18

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Solution

The fourth proportional to 464.40, 641.07 and 333.18 is: 459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.40 : 641.07 = 333.18 : x
  2. Step 2: Convert to fraction form
    464.40/641.07 = 333.18/x
  3. Step 3: Cross multiply
    464.40x = 641.07 × 333.18
  4. Step 4: Simplify right side
    464.40x = 213,591.70
  5. Step 5: Solve for x
    x = 213,591.70/464.40
  6. Step 6: Final answer
    x = 459.93

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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.