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Finding the Fourth Proportional to 376,469.61, 519,526.55 and 215,324.43

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Solution

The fourth proportional to 376,469.61, 519,526.55 and 215,324.43 is: 297,146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,469.61 : 519,526.55 = 215,324.43 : x
  2. Step 2: Convert to fraction form
    376,469.61/519,526.55 = 215,324.43/x
  3. Step 3: Cross multiply
    376,469.61x = 519,526.55 × 215,324.43
  4. Step 4: Simplify right side
    376,469.61x = 111,866,757,171.99
  5. Step 5: Solve for x
    x = 111,866,757,171.99/376,469.61
  6. Step 6: Final answer
    x = 297,146.85

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1.5x scale

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.