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Finding the Fourth Proportional to 396,953.24, 547,792.52 and 215,666.66

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Solution

The fourth proportional to 396,953.24, 547,792.52 and 215,666.66 is: 297,618.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,953.24 : 547,792.52 = 215,666.66 : x
  2. Step 2: Convert to fraction form
    396,953.24/547,792.52 = 215,666.66/x
  3. Step 3: Cross multiply
    396,953.24x = 547,792.52 × 215,666.66
  4. Step 4: Simplify right side
    396,953.24x = 118,140,583,452.53
  5. Step 5: Solve for x
    x = 118,140,583,452.53/396,953.24
  6. Step 6: Final answer
    x = 297,618.39

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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.