Home / 320,965.13-481,453.17-121,379.51

Finding the Fourth Proportional to 320,965.13, 481,453.17 and 121,379.51

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Solution

The fourth proportional to 320,965.13, 481,453.17 and 121,379.51 is: 182,071.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,965.13 : 481,453.17 = 121,379.51 : x
  2. Step 2: Convert to fraction form
    320,965.13/481,453.17 = 121,379.51/x
  3. Step 3: Cross multiply
    320,965.13x = 481,453.17 × 121,379.51
  4. Step 4: Simplify right side
    320,965.13x = 58,438,550,611.01
  5. Step 5: Solve for x
    x = 58,438,550,611.01/320,965.13
  6. Step 6: Final answer
    x = 182,071.34

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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.