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Finding the Fourth Proportional to 574.63, 862.31 and 266.63

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Solution

The fourth proportional to 574.63, 862.31 and 266.63 is: 400.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.63 : 862.31 = 266.63 : x
  2. Step 2: Convert to fraction form
    574.63/862.31 = 266.63/x
  3. Step 3: Cross multiply
    574.63x = 862.31 × 266.63
  4. Step 4: Simplify right side
    574.63x = 229,914.07
  5. Step 5: Solve for x
    x = 229,914.07/574.63
  6. Step 6: Final answer
    x = 400.11

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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.