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Finding the Fourth Proportional to 396,720.66, 547,536.36 and 224,647.50

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Solution

The fourth proportional to 396,720.66, 547,536.36 and 224,647.50 is: 310,048.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,720.66 : 547,536.36 = 224,647.50 : x
  2. Step 2: Convert to fraction form
    396,720.66/547,536.36 = 224,647.50/x
  3. Step 3: Cross multiply
    396,720.66x = 547,536.36 × 224,647.50
  4. Step 4: Simplify right side
    396,720.66x = 123,002,674,433.10
  5. Step 5: Solve for x
    x = 123,002,674,433.10/396,720.66
  6. Step 6: Final answer
    x = 310,048.57

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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.