Home / 396,598.08-547,314.87-215,317.65

Finding the Fourth Proportional to 396,598.08, 547,314.87 and 215,317.65

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Solution

The fourth proportional to 396,598.08, 547,314.87 and 215,317.65 is: 297,143.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,598.08 : 547,314.87 = 215,317.65 : x
  2. Step 2: Convert to fraction form
    396,598.08/547,314.87 = 215,317.65/x
  3. Step 3: Cross multiply
    396,598.08x = 547,314.87 × 215,317.65
  4. Step 4: Simplify right side
    396,598.08x = 117,846,551,618.46
  5. Step 5: Solve for x
    x = 117,846,551,618.46/396,598.08
  6. Step 6: Final answer
    x = 297,143.53

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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.