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Finding the Fourth Proportional to 371,212.72, 512,273.54 and 201,446.85

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Solution

The fourth proportional to 371,212.72, 512,273.54 and 201,446.85 is: 277,996.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,212.72 : 512,273.54 = 201,446.85 : x
  2. Step 2: Convert to fraction form
    371,212.72/512,273.54 = 201,446.85/x
  3. Step 3: Cross multiply
    371,212.72x = 512,273.54 × 201,446.85
  4. Step 4: Simplify right side
    371,212.72x = 103,195,887,906.36
  5. Step 5: Solve for x
    x = 103,195,887,906.36/371,212.72
  6. Step 6: Final answer
    x = 277,996.64

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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.