Home / 396,836.42-547,638.39-215,551.89

Finding the Fourth Proportional to 396,836.42, 547,638.39 and 215,551.89

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Solution

The fourth proportional to 396,836.42, 547,638.39 and 215,551.89 is: 297,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,836.42 : 547,638.39 = 215,551.89 : x
  2. Step 2: Convert to fraction form
    396,836.42/547,638.39 = 215,551.89/x
  3. Step 3: Cross multiply
    396,836.42x = 547,638.39 × 215,551.89
  4. Step 4: Simplify right side
    396,836.42x = 118,044,490,001.06
  5. Step 5: Solve for x
    x = 118,044,490,001.06/396,836.42
  6. Step 6: Final answer
    x = 297,463.85

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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.