Home / 396,493.19-547,145.93-215,201.23

Finding the Fourth Proportional to 396,493.19, 547,145.93 and 215,201.23

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Solution

The fourth proportional to 396,493.19, 547,145.93 and 215,201.23 is: 296,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,493.19 : 547,145.93 = 215,201.23 : x
  2. Step 2: Convert to fraction form
    396,493.19/547,145.93 = 215,201.23/x
  3. Step 3: Cross multiply
    396,493.19x = 547,145.93 × 215,201.23
  4. Step 4: Simplify right side
    396,493.19x = 117,746,479,537.50
  5. Step 5: Solve for x
    x = 117,746,479,537.50/396,493.19
  6. Step 6: Final answer
    x = 296,969.74

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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.