Home / 396,837.18-547,639.44-215,552.64

Finding the Fourth Proportional to 396,837.18, 547,639.44 and 215,552.64

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Solution

The fourth proportional to 396,837.18, 547,639.44 and 215,552.64 is: 297,464.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,837.18 : 547,639.44 = 215,552.64 : x
  2. Step 2: Convert to fraction form
    396,837.18/547,639.44 = 215,552.64/x
  3. Step 3: Cross multiply
    396,837.18x = 547,639.44 × 215,552.64
  4. Step 4: Simplify right side
    396,837.18x = 118,045,127,060.12
  5. Step 5: Solve for x
    x = 118,045,127,060.12/396,837.18
  6. Step 6: Final answer
    x = 297,464.89

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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.