Home / 396,847.09-547,655.61-215,559.37

Finding the Fourth Proportional to 396,847.09, 547,655.61 and 215,559.37

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Solution

The fourth proportional to 396,847.09, 547,655.61 and 215,559.37 is: 297,475.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,847.09 : 547,655.61 = 215,559.37 : x
  2. Step 2: Convert to fraction form
    396,847.09/547,655.61 = 215,559.37/x
  3. Step 3: Cross multiply
    396,847.09x = 547,655.61 × 215,559.37
  4. Step 4: Simplify right side
    396,847.09x = 118,052,298,268.57
  5. Step 5: Solve for x
    x = 118,052,298,268.57/396,847.09
  6. Step 6: Final answer
    x = 297,475.53

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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.