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Finding the Fourth Proportional to 888,228, 1,332,353.34 and 257,142.42

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Solution

The fourth proportional to 888,228, 1,332,353.34 and 257,142.42 is: 385,716.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,228 : 1,332,353.34 = 257,142.42 : x
  2. Step 2: Convert to fraction form
    888,228/1,332,353.34 = 257,142.42/x
  3. Step 3: Cross multiply
    888,228x = 1,332,353.34 × 257,142.42
  4. Step 4: Simplify right side
    888,228x = 342,604,562,142.68
  5. Step 5: Solve for x
    x = 342,604,562,142.68/888,228
  6. Step 6: Final answer
    x = 385,716.91

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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.