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Finding the Fourth Proportional to 295.52, 442.78 and 180.09

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Solution

The fourth proportional to 295.52, 442.78 and 180.09 is: 269.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.52 : 442.78 = 180.09 : x
  2. Step 2: Convert to fraction form
    295.52/442.78 = 180.09/x
  3. Step 3: Cross multiply
    295.52x = 442.78 × 180.09
  4. Step 4: Simplify right side
    295.52x = 79,739.80
  5. Step 5: Solve for x
    x = 79,739.80/295.52
  6. Step 6: Final answer
    x = 269.83

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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.