Home / 396,643.07-547,364.30-215,351.33

Finding the Fourth Proportional to 396,643.07, 547,364.30 and 215,351.33

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Solution

The fourth proportional to 396,643.07, 547,364.30 and 215,351.33 is: 297,183.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,643.07 : 547,364.30 = 215,351.33 : x
  2. Step 2: Convert to fraction form
    396,643.07/547,364.30 = 215,351.33/x
  3. Step 3: Cross multiply
    396,643.07x = 547,364.30 × 215,351.33
  4. Step 4: Simplify right side
    396,643.07x = 117,875,626,185.94
  5. Step 5: Solve for x
    x = 117,875,626,185.94/396,643.07
  6. Step 6: Final answer
    x = 297,183.13

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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.