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Finding the Fourth Proportional to 511.16, 766.71 and 164.52

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Solution

The fourth proportional to 511.16, 766.71 and 164.52 is: 246.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.16 : 766.71 = 164.52 : x
  2. Step 2: Convert to fraction form
    511.16/766.71 = 164.52/x
  3. Step 3: Cross multiply
    511.16x = 766.71 × 164.52
  4. Step 4: Simplify right side
    511.16x = 126,139.13
  5. Step 5: Solve for x
    x = 126,139.13/511.16
  6. Step 6: Final answer
    x = 246.77

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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.