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Finding the Fourth Proportional to 293,212.80, 440,035.20 and 198,218.88

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Solution

The fourth proportional to 293,212.80, 440,035.20 and 198,218.88 is: 297,474.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,212.80 : 440,035.20 = 198,218.88 : x
  2. Step 2: Convert to fraction form
    293,212.80/440,035.20 = 198,218.88/x
  3. Step 3: Cross multiply
    293,212.80x = 440,035.20 × 198,218.88
  4. Step 4: Simplify right side
    293,212.80x = 87,223,284,504.58
  5. Step 5: Solve for x
    x = 87,223,284,504.58/293,212.80
  6. Step 6: Final answer
    x = 297,474.34

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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.