Home / 421,912.03-632,796.66-118,236.29

Finding the Fourth Proportional to 421,912.03, 632,796.66 and 118,236.29

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Solution

The fourth proportional to 421,912.03, 632,796.66 and 118,236.29 is: 177,334.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,912.03 : 632,796.66 = 118,236.29 : x
  2. Step 2: Convert to fraction form
    421,912.03/632,796.66 = 118,236.29/x
  3. Step 3: Cross multiply
    421,912.03x = 632,796.66 × 118,236.29
  4. Step 4: Simplify right side
    421,912.03x = 74,819,530,984.78
  5. Step 5: Solve for x
    x = 74,819,530,984.78/421,912.03
  6. Step 6: Final answer
    x = 177,334.43

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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.