Home / 396,382.32-547,004.83-215,089.64

Finding the Fourth Proportional to 396,382.32, 547,004.83 and 215,089.64

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Solution

The fourth proportional to 396,382.32, 547,004.83 and 215,089.64 is: 296,822.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,382.32 : 547,004.83 = 215,089.64 : x
  2. Step 2: Convert to fraction form
    396,382.32/547,004.83 = 215,089.64/x
  3. Step 3: Cross multiply
    396,382.32x = 547,004.83 × 215,089.64
  4. Step 4: Simplify right side
    396,382.32x = 117,655,071,962.96
  5. Step 5: Solve for x
    x = 117,655,071,962.96/396,382.32
  6. Step 6: Final answer
    x = 296,822.20

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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.