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Finding the Fourth Proportional to 275.88, 413.70 and 119.58

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Solution

The fourth proportional to 275.88, 413.70 and 119.58 is: 179.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.88 : 413.70 = 119.58 : x
  2. Step 2: Convert to fraction form
    275.88/413.70 = 119.58/x
  3. Step 3: Cross multiply
    275.88x = 413.70 × 119.58
  4. Step 4: Simplify right side
    275.88x = 49,470.25
  5. Step 5: Solve for x
    x = 49,470.25/275.88
  6. Step 6: Final answer
    x = 179.32

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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.