Home / 210,858.24-290,993.04-115,373.28

Finding the Fourth Proportional to 210,858.24, 290,993.04 and 115,373.28

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Solution

The fourth proportional to 210,858.24, 290,993.04 and 115,373.28 is: 159,219.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,858.24 : 290,993.04 = 115,373.28 : x
  2. Step 2: Convert to fraction form
    210,858.24/290,993.04 = 115,373.28/x
  3. Step 3: Cross multiply
    210,858.24x = 290,993.04 × 115,373.28
  4. Step 4: Simplify right side
    210,858.24x = 33,572,821,481.97
  5. Step 5: Solve for x
    x = 33,572,821,481.97/210,858.24
  6. Step 6: Final answer
    x = 159,219.87

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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.