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Finding the Fourth Proportional to 381,994.80, 572,336.10 and 181,884.30

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Solution

The fourth proportional to 381,994.80, 572,336.10 and 181,884.30 is: 272,514.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,994.80 : 572,336.10 = 181,884.30 : x
  2. Step 2: Convert to fraction form
    381,994.80/572,336.10 = 181,884.30/x
  3. Step 3: Cross multiply
    381,994.80x = 572,336.10 × 181,884.30
  4. Step 4: Simplify right side
    381,994.80x = 104,098,950,913.23
  5. Step 5: Solve for x
    x = 104,098,950,913.23/381,994.80
  6. Step 6: Final answer
    x = 272,514.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.