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Finding the Fourth Proportional to 381,277, 571,915.50 and 100,794.25

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Solution

The fourth proportional to 381,277, 571,915.50 and 100,794.25 is: 151,191.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,277 : 571,915.50 = 100,794.25 : x
  2. Step 2: Convert to fraction form
    381,277/571,915.50 = 100,794.25/x
  3. Step 3: Cross multiply
    381,277x = 571,915.50 × 100,794.25
  4. Step 4: Simplify right side
    381,277x = 57,645,793,885.88
  5. Step 5: Solve for x
    x = 57,645,793,885.88/381,277
  6. Step 6: Final answer
    x = 151,191.38

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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.