Home / 307,739.20-461,695.20-149,972.80

Finding the Fourth Proportional to 307,739.20, 461,695.20 and 149,972.80

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Solution

The fourth proportional to 307,739.20, 461,695.20 and 149,972.80 is: 225,001.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,739.20 : 461,695.20 = 149,972.80 : x
  2. Step 2: Convert to fraction form
    307,739.20/461,695.20 = 149,972.80/x
  3. Step 3: Cross multiply
    307,739.20x = 461,695.20 × 149,972.80
  4. Step 4: Simplify right side
    307,739.20x = 69,241,721,890.56
  5. Step 5: Solve for x
    x = 69,241,721,890.56/307,739.20
  6. Step 6: Final answer
    x = 225,001.31

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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.