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Finding the Fourth Proportional to 447,169.61, 670,543.92 and 131,563.64

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Solution

The fourth proportional to 447,169.61, 670,543.92 and 131,563.64 is: 197,283.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,169.61 : 670,543.92 = 131,563.64 : x
  2. Step 2: Convert to fraction form
    447,169.61/670,543.92 = 131,563.64/x
  3. Step 3: Cross multiply
    447,169.61x = 670,543.92 × 131,563.64
  4. Step 4: Simplify right side
    447,169.61x = 88,219,200,571.43
  5. Step 5: Solve for x
    x = 88,219,200,571.43/447,169.61
  6. Step 6: Final answer
    x = 197,283.53

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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.