Home / 396,406.33-547,041.09-215,118.26

Finding the Fourth Proportional to 396,406.33, 547,041.09 and 215,118.26

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Solution

The fourth proportional to 396,406.33, 547,041.09 and 215,118.26 is: 296,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,406.33 : 547,041.09 = 215,118.26 : x
  2. Step 2: Convert to fraction form
    396,406.33/547,041.09 = 215,118.26/x
  3. Step 3: Cross multiply
    396,406.33x = 547,041.09 × 215,118.26
  4. Step 4: Simplify right side
    396,406.33x = 117,678,530,629.30
  5. Step 5: Solve for x
    x = 117,678,530,629.30/396,406.33
  6. Step 6: Final answer
    x = 296,863.40

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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.