Home / 396,563.16-547,257.36-215,275.02

Finding the Fourth Proportional to 396,563.16, 547,257.36 and 215,275.02

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Solution

The fourth proportional to 396,563.16, 547,257.36 and 215,275.02 is: 297,079.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,563.16 : 547,257.36 = 215,275.02 : x
  2. Step 2: Convert to fraction form
    396,563.16/547,257.36 = 215,275.02/x
  3. Step 3: Cross multiply
    396,563.16x = 547,257.36 × 215,275.02
  4. Step 4: Simplify right side
    396,563.16x = 117,810,839,119.15
  5. Step 5: Solve for x
    x = 117,810,839,119.15/396,563.16
  6. Step 6: Final answer
    x = 297,079.64

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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.