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Finding the Fourth Proportional to 259.68, 357.84 and 181.92

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Solution

The fourth proportional to 259.68, 357.84 and 181.92 is: 250.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.68 : 357.84 = 181.92 : x
  2. Step 2: Convert to fraction form
    259.68/357.84 = 181.92/x
  3. Step 3: Cross multiply
    259.68x = 357.84 × 181.92
  4. Step 4: Simplify right side
    259.68x = 65,098.25
  5. Step 5: Solve for x
    x = 65,098.25/259.68
  6. Step 6: Final answer
    x = 250.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.