Home / 218,986.83-302,192.64-123,502.41

Finding the Fourth Proportional to 218,986.83, 302,192.64 and 123,502.41

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Solution

The fourth proportional to 218,986.83, 302,192.64 and 123,502.41 is: 170,428.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,986.83 : 302,192.64 = 123,502.41 : x
  2. Step 2: Convert to fraction form
    218,986.83/302,192.64 = 123,502.41/x
  3. Step 3: Cross multiply
    218,986.83x = 302,192.64 × 123,502.41
  4. Step 4: Simplify right side
    218,986.83x = 37,321,519,324.26
  5. Step 5: Solve for x
    x = 37,321,519,324.26/218,986.83
  6. Step 6: Final answer
    x = 170,428.15

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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.