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Finding the Fourth Proportional to 447,310.80, 670,447.80 and 180,939.60

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Solution

The fourth proportional to 447,310.80, 670,447.80 and 180,939.60 is: 271,199.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,310.80 : 670,447.80 = 180,939.60 : x
  2. Step 2: Convert to fraction form
    447,310.80/670,447.80 = 180,939.60/x
  3. Step 3: Cross multiply
    447,310.80x = 670,447.80 × 180,939.60
  4. Step 4: Simplify right side
    447,310.80x = 121,310,556,752.88
  5. Step 5: Solve for x
    x = 121,310,556,752.88/447,310.80
  6. Step 6: Final answer
    x = 271,199.70

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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.