Home / 396,389.32-547,014.48-215,096.64

Finding the Fourth Proportional to 396,389.32, 547,014.48 and 215,096.64

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Solution

The fourth proportional to 396,389.32, 547,014.48 and 215,096.64 is: 296,831.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,389.32 : 547,014.48 = 215,096.64 : x
  2. Step 2: Convert to fraction form
    396,389.32/547,014.48 = 215,096.64/x
  3. Step 3: Cross multiply
    396,389.32x = 547,014.48 × 215,096.64
  4. Step 4: Simplify right side
    396,389.32x = 117,660,976,679.35
  5. Step 5: Solve for x
    x = 117,660,976,679.35/396,389.32
  6. Step 6: Final answer
    x = 296,831.85

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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.