Home / 396,521.56-547,200.12-215,233.40

Finding the Fourth Proportional to 396,521.56, 547,200.12 and 215,233.40

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Solution

The fourth proportional to 396,521.56, 547,200.12 and 215,233.40 is: 297,022.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,521.56 : 547,200.12 = 215,233.40 : x
  2. Step 2: Convert to fraction form
    396,521.56/547,200.12 = 215,233.40/x
  3. Step 3: Cross multiply
    396,521.56x = 547,200.12 × 215,233.40
  4. Step 4: Simplify right side
    396,521.56x = 117,775,742,308.01
  5. Step 5: Solve for x
    x = 117,775,742,308.01/396,521.56
  6. Step 6: Final answer
    x = 297,022.29

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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.