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Finding the Fourth Proportional to 262,857.40, 394,243.02 and 73,330.60

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Solution

The fourth proportional to 262,857.40, 394,243.02 and 73,330.60 is: 109,983.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,857.40 : 394,243.02 = 73,330.60 : x
  2. Step 2: Convert to fraction form
    262,857.40/394,243.02 = 73,330.60/x
  3. Step 3: Cross multiply
    262,857.40x = 394,243.02 × 73,330.60
  4. Step 4: Simplify right side
    262,857.40x = 28,910,077,202.41
  5. Step 5: Solve for x
    x = 28,910,077,202.41/262,857.40
  6. Step 6: Final answer
    x = 109,983.88

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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.