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Finding the Fourth Proportional to 464.58, 641.25 and 268.17

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Solution

The fourth proportional to 464.58, 641.25 and 268.17 is: 370.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.58 : 641.25 = 268.17 : x
  2. Step 2: Convert to fraction form
    464.58/641.25 = 268.17/x
  3. Step 3: Cross multiply
    464.58x = 641.25 × 268.17
  4. Step 4: Simplify right side
    464.58x = 171,964.01
  5. Step 5: Solve for x
    x = 171,964.01/464.58
  6. Step 6: Final answer
    x = 370.15

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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.