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Finding the Fourth Proportional to 277.50, 382.99 and 265.20

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Solution

The fourth proportional to 277.50, 382.99 and 265.20 is: 366.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.50 : 382.99 = 265.20 : x
  2. Step 2: Convert to fraction form
    277.50/382.99 = 265.20/x
  3. Step 3: Cross multiply
    277.50x = 382.99 × 265.20
  4. Step 4: Simplify right side
    277.50x = 101,568.51
  5. Step 5: Solve for x
    x = 101,568.51/277.50
  6. Step 6: Final answer
    x = 366.02

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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.