Home / 396,942.64-547,787.04-215,658.16

Finding the Fourth Proportional to 396,942.64, 547,787.04 and 215,658.16

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Solution

The fourth proportional to 396,942.64, 547,787.04 and 215,658.16 is: 297,611.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,942.64 : 547,787.04 = 215,658.16 : x
  2. Step 2: Convert to fraction form
    396,942.64/547,787.04 = 215,658.16/x
  3. Step 3: Cross multiply
    396,942.64x = 547,787.04 × 215,658.16
  4. Step 4: Simplify right side
    396,942.64x = 118,134,745,118.25
  5. Step 5: Solve for x
    x = 118,134,745,118.25/396,942.64
  6. Step 6: Final answer
    x = 297,611.63

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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.