Home / 490,203.78-734,669.93-220,132.50

Finding the Fourth Proportional to 490,203.78, 734,669.93 and 220,132.50

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Solution

The fourth proportional to 490,203.78, 734,669.93 and 220,132.50 is: 329,913.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,203.78 : 734,669.93 = 220,132.50 : x
  2. Step 2: Convert to fraction form
    490,203.78/734,669.93 = 220,132.50/x
  3. Step 3: Cross multiply
    490,203.78x = 734,669.93 × 220,132.50
  4. Step 4: Simplify right side
    490,203.78x = 161,724,728,365.73
  5. Step 5: Solve for x
    x = 161,724,728,365.73/490,203.78
  6. Step 6: Final answer
    x = 329,913.26

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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.