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Finding the Fourth Proportional to 322,199.91, 483,262.47 and 85,561.11

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Solution

The fourth proportional to 322,199.91, 483,262.47 and 85,561.11 is: 128,331.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,199.91 : 483,262.47 = 85,561.11 : x
  2. Step 2: Convert to fraction form
    322,199.91/483,262.47 = 85,561.11/x
  3. Step 3: Cross multiply
    322,199.91x = 483,262.47 × 85,561.11
  4. Step 4: Simplify right side
    322,199.91x = 41,348,473,354.54
  5. Step 5: Solve for x
    x = 41,348,473,354.54/322,199.91
  6. Step 6: Final answer
    x = 128,331.73

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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.