Home / 376,936.91-520,158.66-215,806.94

Finding the Fourth Proportional to 376,936.91, 520,158.66 and 215,806.94

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Solution

The fourth proportional to 376,936.91, 520,158.66 and 215,806.94 is: 297,805.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,936.91 : 520,158.66 = 215,806.94 : x
  2. Step 2: Convert to fraction form
    376,936.91/520,158.66 = 215,806.94/x
  3. Step 3: Cross multiply
    376,936.91x = 520,158.66 × 215,806.94
  4. Step 4: Simplify right side
    376,936.91x = 112,253,848,729.10
  5. Step 5: Solve for x
    x = 112,253,848,729.10/376,936.91
  6. Step 6: Final answer
    x = 297,805.40

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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.