Home / 288,217.49-394,856.12-277,439.45

Finding the Fourth Proportional to 288,217.49, 394,856.12 and 277,439.45

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Solution

The fourth proportional to 288,217.49, 394,856.12 and 277,439.45 is: 380,090.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,217.49 : 394,856.12 = 277,439.45 : x
  2. Step 2: Convert to fraction form
    288,217.49/394,856.12 = 277,439.45/x
  3. Step 3: Cross multiply
    288,217.49x = 394,856.12 × 277,439.45
  4. Step 4: Simplify right side
    288,217.49x = 109,548,664,361.88
  5. Step 5: Solve for x
    x = 109,548,664,361.88/288,217.49
  6. Step 6: Final answer
    x = 380,090.28

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.