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Finding the Fourth Proportional to 381,062.73, 525,909.87 and 219,961.02

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Solution

The fourth proportional to 381,062.73, 525,909.87 and 219,961.02 is: 303,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,062.73 : 525,909.87 = 219,961.02 : x
  2. Step 2: Convert to fraction form
    381,062.73/525,909.87 = 219,961.02/x
  3. Step 3: Cross multiply
    381,062.73x = 525,909.87 × 219,961.02
  4. Step 4: Simplify right side
    381,062.73x = 115,679,671,433.27
  5. Step 5: Solve for x
    x = 115,679,671,433.27/381,062.73
  6. Step 6: Final answer
    x = 303,571.20

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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.