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Finding the Fourth Proportional to 199,915.88, 275,880.66 and 109,270.76

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Solution

The fourth proportional to 199,915.88, 275,880.66 and 109,270.76 is: 150,791.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,915.88 : 275,880.66 = 109,270.76 : x
  2. Step 2: Convert to fraction form
    199,915.88/275,880.66 = 109,270.76/x
  3. Step 3: Cross multiply
    199,915.88x = 275,880.66 × 109,270.76
  4. Step 4: Simplify right side
    199,915.88x = 30,145,689,387.50
  5. Step 5: Solve for x
    x = 30,145,689,387.50/199,915.88
  6. Step 6: Final answer
    x = 150,791.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.