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Finding the Fourth Proportional to 414.04, 617.69 and 402.28

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Solution

The fourth proportional to 414.04, 617.69 and 402.28 is: 600.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.04 : 617.69 = 402.28 : x
  2. Step 2: Convert to fraction form
    414.04/617.69 = 402.28/x
  3. Step 3: Cross multiply
    414.04x = 617.69 × 402.28
  4. Step 4: Simplify right side
    414.04x = 248,484.33
  5. Step 5: Solve for x
    x = 248,484.33/414.04
  6. Step 6: Final answer
    x = 600.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.