Home / 210,824.66-290,945.16-115,331.33

Finding the Fourth Proportional to 210,824.66, 290,945.16 and 115,331.33

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Solution

The fourth proportional to 210,824.66, 290,945.16 and 115,331.33 is: 159,161.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,824.66 : 290,945.16 = 115,331.33 : x
  2. Step 2: Convert to fraction form
    210,824.66/290,945.16 = 115,331.33/x
  3. Step 3: Cross multiply
    210,824.66x = 290,945.16 × 115,331.33
  4. Step 4: Simplify right side
    210,824.66x = 33,555,090,805.14
  5. Step 5: Solve for x
    x = 33,555,090,805.14/210,824.66
  6. Step 6: Final answer
    x = 159,161.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.