Home / 218,918.94-302,101.29-123,424.26

Finding the Fourth Proportional to 218,918.94, 302,101.29 and 123,424.26

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Solution

The fourth proportional to 218,918.94, 302,101.29 and 123,424.26 is: 170,321.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,918.94 : 302,101.29 = 123,424.26 : x
  2. Step 2: Convert to fraction form
    218,918.94/302,101.29 = 123,424.26/x
  3. Step 3: Cross multiply
    218,918.94x = 302,101.29 × 123,424.26
  4. Step 4: Simplify right side
    218,918.94x = 37,286,628,163.30
  5. Step 5: Solve for x
    x = 37,286,628,163.30/218,918.94
  6. Step 6: Final answer
    x = 170,321.62

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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.