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Finding the Fourth Proportional to 277.32, 382.62 and 194.50

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Solution

The fourth proportional to 277.32, 382.62 and 194.50 is: 268.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.32 : 382.62 = 194.50 : x
  2. Step 2: Convert to fraction form
    277.32/382.62 = 194.50/x
  3. Step 3: Cross multiply
    277.32x = 382.62 × 194.50
  4. Step 4: Simplify right side
    277.32x = 74,420.80
  5. Step 5: Solve for x
    x = 74,420.80/277.32
  6. Step 6: Final answer
    x = 268.35

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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.