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Finding the Fourth Proportional to 277,266.76, 382,731.60 and 215,891.44

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Solution

The fourth proportional to 277,266.76, 382,731.60 and 215,891.44 is: 298,010.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,266.76 : 382,731.60 = 215,891.44 : x
  2. Step 2: Convert to fraction form
    277,266.76/382,731.60 = 215,891.44/x
  3. Step 3: Cross multiply
    277,266.76x = 382,731.60 × 215,891.44
  4. Step 4: Simplify right side
    277,266.76x = 82,628,476,257.50
  5. Step 5: Solve for x
    x = 82,628,476,257.50/277,266.76
  6. Step 6: Final answer
    x = 298,010.75

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1.5x scale

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.