Home / 456,749.88-685,190.40-141,231.36

Finding the Fourth Proportional to 456,749.88, 685,190.40 and 141,231.36

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Solution

The fourth proportional to 456,749.88, 685,190.40 and 141,231.36 is: 211,867.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,749.88 : 685,190.40 = 141,231.36 : x
  2. Step 2: Convert to fraction form
    456,749.88/685,190.40 = 141,231.36/x
  3. Step 3: Cross multiply
    456,749.88x = 685,190.40 × 141,231.36
  4. Step 4: Simplify right side
    456,749.88x = 96,770,372,050.94
  5. Step 5: Solve for x
    x = 96,770,372,050.94/456,749.88
  6. Step 6: Final answer
    x = 211,867.32

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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.