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Finding the Fourth Proportional to 271,286.64, 408,521.70 and 236,640.24

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Solution

The fourth proportional to 271,286.64, 408,521.70 and 236,640.24 is: 356,348.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,286.64 : 408,521.70 = 236,640.24 : x
  2. Step 2: Convert to fraction form
    271,286.64/408,521.70 = 236,640.24/x
  3. Step 3: Cross multiply
    271,286.64x = 408,521.70 × 236,640.24
  4. Step 4: Simplify right side
    271,286.64x = 96,672,673,133.21
  5. Step 5: Solve for x
    x = 96,672,673,133.21/271,286.64
  6. Step 6: Final answer
    x = 356,348.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.