Home / 490,204.78-734,671.43-220,133.50

Finding the Fourth Proportional to 490,204.78, 734,671.43 and 220,133.50

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Solution

The fourth proportional to 490,204.78, 734,671.43 and 220,133.50 is: 329,914.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,204.78 : 734,671.43 = 220,133.50 : x
  2. Step 2: Convert to fraction form
    490,204.78/734,671.43 = 220,133.50/x
  3. Step 3: Cross multiply
    490,204.78x = 734,671.43 × 220,133.50
  4. Step 4: Simplify right side
    490,204.78x = 161,725,793,235.91
  5. Step 5: Solve for x
    x = 161,725,793,235.91/490,204.78
  6. Step 6: Final answer
    x = 329,914.76

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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.