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Finding the Fourth Proportional to 416.36, 574.54 and 250.65

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Solution

The fourth proportional to 416.36, 574.54 and 250.65 is: 345.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.36 : 574.54 = 250.65 : x
  2. Step 2: Convert to fraction form
    416.36/574.54 = 250.65/x
  3. Step 3: Cross multiply
    416.36x = 574.54 × 250.65
  4. Step 4: Simplify right side
    416.36x = 144,007.82
  5. Step 5: Solve for x
    x = 144,007.82/416.36
  6. Step 6: Final answer
    x = 345.87

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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.