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Finding the Fourth Proportional to 299,241.01, 448,861.38 and 128,425.69

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Solution

The fourth proportional to 299,241.01, 448,861.38 and 128,425.69 is: 192,638.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,241.01 : 448,861.38 = 128,425.69 : x
  2. Step 2: Convert to fraction form
    299,241.01/448,861.38 = 128,425.69/x
  3. Step 3: Cross multiply
    299,241.01x = 448,861.38 × 128,425.69
  4. Step 4: Simplify right side
    299,241.01x = 57,645,332,440.85
  5. Step 5: Solve for x
    x = 57,645,332,440.85/299,241.01
  6. Step 6: Final answer
    x = 192,638.48

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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.