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Finding the Fourth Proportional to 247,662.60, 341,778.36 and 140,229.76

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Solution

The fourth proportional to 247,662.60, 341,778.36 and 140,229.76 is: 193,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,662.60 : 341,778.36 = 140,229.76 : x
  2. Step 2: Convert to fraction form
    247,662.60/341,778.36 = 140,229.76/x
  3. Step 3: Cross multiply
    247,662.60x = 341,778.36 × 140,229.76
  4. Step 4: Simplify right side
    247,662.60x = 47,927,497,395.99
  5. Step 5: Solve for x
    x = 47,927,497,395.99/247,662.60
  6. Step 6: Final answer
    x = 193,519.32

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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.