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Finding the Fourth Proportional to 207,627.60, 311,326.20 and 82,827.60

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Solution

The fourth proportional to 207,627.60, 311,326.20 and 82,827.60 is: 124,195.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,627.60 : 311,326.20 = 82,827.60 : x
  2. Step 2: Convert to fraction form
    207,627.60/311,326.20 = 82,827.60/x
  3. Step 3: Cross multiply
    207,627.60x = 311,326.20 × 82,827.60
  4. Step 4: Simplify right side
    207,627.60x = 25,786,401,963.12
  5. Step 5: Solve for x
    x = 25,786,401,963.12/207,627.60
  6. Step 6: Final answer
    x = 124,195.44

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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.