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Finding the Fourth Proportional to 299,255.60, 447,789.90 and 220,523.60

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Solution

The fourth proportional to 299,255.60, 447,789.90 and 220,523.60 is: 329,979.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,255.60 : 447,789.90 = 220,523.60 : x
  2. Step 2: Convert to fraction form
    299,255.60/447,789.90 = 220,523.60/x
  3. Step 3: Cross multiply
    299,255.60x = 447,789.90 × 220,523.60
  4. Step 4: Simplify right side
    299,255.60x = 98,748,240,791.64
  5. Step 5: Solve for x
    x = 98,748,240,791.64/299,255.60
  6. Step 6: Final answer
    x = 329,979.59

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1.5x scale

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.