Home / 396,471.31-547,130.93-215,183.23

Finding the Fourth Proportional to 396,471.31, 547,130.93 and 215,183.23

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Solution

The fourth proportional to 396,471.31, 547,130.93 and 215,183.23 is: 296,953.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,471.31 : 547,130.93 = 215,183.23 : x
  2. Step 2: Convert to fraction form
    396,471.31/547,130.93 = 215,183.23/x
  3. Step 3: Cross multiply
    396,471.31x = 547,130.93 × 215,183.23
  4. Step 4: Simplify right side
    396,471.31x = 117,733,400,750.30
  5. Step 5: Solve for x
    x = 117,733,400,750.30/396,471.31
  6. Step 6: Final answer
    x = 296,953.14

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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.