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Finding the Fourth Proportional to 574.07, 862.66 and 300.36

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Solution

The fourth proportional to 574.07, 862.66 and 300.36 is: 451.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.07 : 862.66 = 300.36 : x
  2. Step 2: Convert to fraction form
    574.07/862.66 = 300.36/x
  3. Step 3: Cross multiply
    574.07x = 862.66 × 300.36
  4. Step 4: Simplify right side
    574.07x = 259,107.06
  5. Step 5: Solve for x
    x = 259,107.06/574.07
  6. Step 6: Final answer
    x = 451.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.