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Finding the Fourth Proportional to 376,843.86, 520,073.46 and 215,749.44

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Solution

The fourth proportional to 376,843.86, 520,073.46 and 215,749.44 is: 297,750.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,843.86 : 520,073.46 = 215,749.44 : x
  2. Step 2: Convert to fraction form
    376,843.86/520,073.46 = 215,749.44/x
  3. Step 3: Cross multiply
    376,843.86x = 520,073.46 × 215,749.44
  4. Step 4: Simplify right side
    376,843.86x = 112,205,557,753.86
  5. Step 5: Solve for x
    x = 112,205,557,753.86/376,843.86
  6. Step 6: Final answer
    x = 297,750.79

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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.