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Finding the Fourth Proportional to 277.41, 382.66 and 202.62

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Solution

The fourth proportional to 277.41, 382.66 and 202.62 is: 279.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.41 : 382.66 = 202.62 : x
  2. Step 2: Convert to fraction form
    277.41/382.66 = 202.62/x
  3. Step 3: Cross multiply
    277.41x = 382.66 × 202.62
  4. Step 4: Simplify right side
    277.41x = 77,536.64
  5. Step 5: Solve for x
    x = 77,536.64/277.41
  6. Step 6: Final answer
    x = 279.50

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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.