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Finding the Fourth Proportional to 376,604.61, 519,789.80 and 223,727.72

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Solution

The fourth proportional to 376,604.61, 519,789.80 and 223,727.72 is: 308,789.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,604.61 : 519,789.80 = 223,727.72 : x
  2. Step 2: Convert to fraction form
    376,604.61/519,789.80 = 223,727.72/x
  3. Step 3: Cross multiply
    376,604.61x = 519,789.80 × 223,727.72
  4. Step 4: Simplify right side
    376,604.61x = 116,291,387,014.09
  5. Step 5: Solve for x
    x = 116,291,387,014.09/376,604.61
  6. Step 6: Final answer
    x = 308,789.07

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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.