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Finding the Fourth Proportional to 574.95, 862.56 and 164.09

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Solution

The fourth proportional to 574.95, 862.56 and 164.09 is: 246.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.95 : 862.56 = 164.09 : x
  2. Step 2: Convert to fraction form
    574.95/862.56 = 164.09/x
  3. Step 3: Cross multiply
    574.95x = 862.56 × 164.09
  4. Step 4: Simplify right side
    574.95x = 141,536.65
  5. Step 5: Solve for x
    x = 141,536.65/574.95
  6. Step 6: Final answer
    x = 246.17

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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.