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Finding the Fourth Proportional to 479,236.80, 718,732.14 and 142,197.73

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Solution

The fourth proportional to 479,236.80, 718,732.14 and 142,197.73 is: 213,260.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,236.80 : 718,732.14 = 142,197.73 : x
  2. Step 2: Convert to fraction form
    479,236.80/718,732.14 = 142,197.73/x
  3. Step 3: Cross multiply
    479,236.80x = 718,732.14 × 142,197.73
  4. Step 4: Simplify right side
    479,236.80x = 102,202,076,455.97
  5. Step 5: Solve for x
    x = 102,202,076,455.97/479,236.80
  6. Step 6: Final answer
    x = 213,260.07

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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.