Home / 396,684.30-547,409.37-215,392.29

Finding the Fourth Proportional to 396,684.30, 547,409.37 and 215,392.29

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Solution

The fourth proportional to 396,684.30, 547,409.37 and 215,392.29 is: 297,233.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,684.30 : 547,409.37 = 215,392.29 : x
  2. Step 2: Convert to fraction form
    396,684.30/547,409.37 = 215,392.29/x
  3. Step 3: Cross multiply
    396,684.30x = 547,409.37 × 215,392.29
  4. Step 4: Simplify right side
    396,684.30x = 117,907,757,771.76
  5. Step 5: Solve for x
    x = 117,907,757,771.76/396,684.30
  6. Step 6: Final answer
    x = 297,233.24

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1.5x scale

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.