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Finding the Fourth Proportional to 396,443.40, 547,118.82 and 224,361.12

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Solution

The fourth proportional to 396,443.40, 547,118.82 and 224,361.12 is: 309,633.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,443.40 : 547,118.82 = 224,361.12 : x
  2. Step 2: Convert to fraction form
    396,443.40/547,118.82 = 224,361.12/x
  3. Step 3: Cross multiply
    396,443.40x = 547,118.82 × 224,361.12
  4. Step 4: Simplify right side
    396,443.40x = 122,752,191,228.28
  5. Step 5: Solve for x
    x = 122,752,191,228.28/396,443.40
  6. Step 6: Final answer
    x = 309,633.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.