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Finding the Fourth Proportional to 295.65, 442.80 and 173.79

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Solution

The fourth proportional to 295.65, 442.80 and 173.79 is: 260.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.65 : 442.80 = 173.79 : x
  2. Step 2: Convert to fraction form
    295.65/442.80 = 173.79/x
  3. Step 3: Cross multiply
    295.65x = 442.80 × 173.79
  4. Step 4: Simplify right side
    295.65x = 76,954.21
  5. Step 5: Solve for x
    x = 76,954.21/295.65
  6. Step 6: Final answer
    x = 260.29

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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.