Home / 396,916.20-547,731.72-227,146.68

Finding the Fourth Proportional to 396,916.20, 547,731.72 and 227,146.68

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Solution

The fourth proportional to 396,916.20, 547,731.72 and 227,146.68 is: 313,455.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,916.20 : 547,731.72 = 227,146.68 : x
  2. Step 2: Convert to fraction form
    396,916.20/547,731.72 = 227,146.68/x
  3. Step 3: Cross multiply
    396,916.20x = 547,731.72 × 227,146.68
  4. Step 4: Simplify right side
    396,916.20x = 124,415,441,728.69
  5. Step 5: Solve for x
    x = 124,415,441,728.69/396,916.20
  6. Step 6: Final answer
    x = 313,455.19

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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.