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Finding the Fourth Proportional to 510.75, 766.32 and 181.73

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Solution

The fourth proportional to 510.75, 766.32 and 181.73 is: 272.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.75 : 766.32 = 181.73 : x
  2. Step 2: Convert to fraction form
    510.75/766.32 = 181.73/x
  3. Step 3: Cross multiply
    510.75x = 766.32 × 181.73
  4. Step 4: Simplify right side
    510.75x = 139,263.33
  5. Step 5: Solve for x
    x = 139,263.33/510.75
  6. Step 6: Final answer
    x = 272.66

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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.