Home / 396,422.22-547,066.67-215,135.71

Finding the Fourth Proportional to 396,422.22, 547,066.67 and 215,135.71

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Solution

The fourth proportional to 396,422.22, 547,066.67 and 215,135.71 is: 296,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,422.22 : 547,066.67 = 215,135.71 : x
  2. Step 2: Convert to fraction form
    396,422.22/547,066.67 = 215,135.71/x
  3. Step 3: Cross multiply
    396,422.22x = 547,066.67 × 215,135.71
  4. Step 4: Simplify right side
    396,422.22x = 117,693,576,467.79
  5. Step 5: Solve for x
    x = 117,693,576,467.79/396,422.22
  6. Step 6: Final answer
    x = 296,889.45

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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.