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Finding the Fourth Proportional to 274.07, 410.83 and 137.32

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Solution

The fourth proportional to 274.07, 410.83 and 137.32 is: 205.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.07 : 410.83 = 137.32 : x
  2. Step 2: Convert to fraction form
    274.07/410.83 = 137.32/x
  3. Step 3: Cross multiply
    274.07x = 410.83 × 137.32
  4. Step 4: Simplify right side
    274.07x = 56,413.81
  5. Step 5: Solve for x
    x = 56,413.81/274.07
  6. Step 6: Final answer
    x = 205.84

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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.