Home / 396,518.54-547,196.08-215,230.37

Finding the Fourth Proportional to 396,518.54, 547,196.08 and 215,230.37

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Solution

The fourth proportional to 396,518.54, 547,196.08 and 215,230.37 is: 297,018.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,518.54 : 547,196.08 = 215,230.37 : x
  2. Step 2: Convert to fraction form
    396,518.54/547,196.08 = 215,230.37/x
  3. Step 3: Cross multiply
    396,518.54x = 547,196.08 × 215,230.37
  4. Step 4: Simplify right side
    396,518.54x = 117,773,214,760.95
  5. Step 5: Solve for x
    x = 117,773,214,760.95/396,518.54
  6. Step 6: Final answer
    x = 297,018.18

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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.