Home / 396,398.16-547,026.60-215,105.52

Finding the Fourth Proportional to 396,398.16, 547,026.60 and 215,105.52

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Solution

The fourth proportional to 396,398.16, 547,026.60 and 215,105.52 is: 296,844.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,398.16 : 547,026.60 = 215,105.52 : x
  2. Step 2: Convert to fraction form
    396,398.16/547,026.60 = 215,105.52/x
  3. Step 3: Cross multiply
    396,398.16x = 547,026.60 × 215,105.52
  4. Step 4: Simplify right side
    396,398.16x = 117,668,441,246.83
  5. Step 5: Solve for x
    x = 117,668,441,246.83/396,398.16
  6. Step 6: Final answer
    x = 296,844.07

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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.