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Finding the Fourth Proportional to 511.10, 766.36 and 164.35

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Solution

The fourth proportional to 511.10, 766.36 and 164.35 is: 246.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.10 : 766.36 = 164.35 : x
  2. Step 2: Convert to fraction form
    511.10/766.36 = 164.35/x
  3. Step 3: Cross multiply
    511.10x = 766.36 × 164.35
  4. Step 4: Simplify right side
    511.10x = 125,952.43
  5. Step 5: Solve for x
    x = 125,952.43/511.10
  6. Step 6: Final answer
    x = 246.43

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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.