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Finding the Fourth Proportional to 376,159.20, 519,100.32 and 206,394.60

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Solution

The fourth proportional to 376,159.20, 519,100.32 and 206,394.60 is: 284,824.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,159.20 : 519,100.32 = 206,394.60 : x
  2. Step 2: Convert to fraction form
    376,159.20/519,100.32 = 206,394.60/x
  3. Step 3: Cross multiply
    376,159.20x = 519,100.32 × 206,394.60
  4. Step 4: Simplify right side
    376,159.20x = 107,139,502,906.27
  5. Step 5: Solve for x
    x = 107,139,502,906.27/376,159.20
  6. Step 6: Final answer
    x = 284,824.89

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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.