Home / 396,941.64-547,785.66-215,657.16

Finding the Fourth Proportional to 396,941.64, 547,785.66 and 215,657.16

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Solution

The fourth proportional to 396,941.64, 547,785.66 and 215,657.16 is: 297,610.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,941.64 : 547,785.66 = 215,657.16 : x
  2. Step 2: Convert to fraction form
    396,941.64/547,785.66 = 215,657.16/x
  3. Step 3: Cross multiply
    396,941.64x = 547,785.66 × 215,657.16
  4. Step 4: Simplify right side
    396,941.64x = 118,133,899,724.33
  5. Step 5: Solve for x
    x = 118,133,899,724.33/396,941.64
  6. Step 6: Final answer
    x = 297,610.25

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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.