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Finding the Fourth Proportional to 271,908.38, 375,128.88 and 200,458.28

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Solution

The fourth proportional to 271,908.38, 375,128.88 and 200,458.28 is: 276,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,908.38 : 375,128.88 = 200,458.28 : x
  2. Step 2: Convert to fraction form
    271,908.38/375,128.88 = 200,458.28/x
  3. Step 3: Cross multiply
    271,908.38x = 375,128.88 × 200,458.28
  4. Step 4: Simplify right side
    271,908.38x = 75,197,690,063.13
  5. Step 5: Solve for x
    x = 75,197,690,063.13/271,908.38
  6. Step 6: Final answer
    x = 276,555.25

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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.