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Finding the Fourth Proportional to 575.62, 863.48 and 164.79

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Solution

The fourth proportional to 575.62, 863.48 and 164.79 is: 247.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.62 : 863.48 = 164.79 : x
  2. Step 2: Convert to fraction form
    575.62/863.48 = 164.79/x
  3. Step 3: Cross multiply
    575.62x = 863.48 × 164.79
  4. Step 4: Simplify right side
    575.62x = 142,292.87
  5. Step 5: Solve for x
    x = 142,292.87/575.62
  6. Step 6: Final answer
    x = 247.20

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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.