Home / 218,936.06-302,131.82-123,442.79

Finding the Fourth Proportional to 218,936.06, 302,131.82 and 123,442.79

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Solution

The fourth proportional to 218,936.06, 302,131.82 and 123,442.79 is: 170,351.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,936.06 : 302,131.82 = 123,442.79 : x
  2. Step 2: Convert to fraction form
    218,936.06/302,131.82 = 123,442.79/x
  3. Step 3: Cross multiply
    218,936.06x = 302,131.82 × 123,442.79
  4. Step 4: Simplify right side
    218,936.06x = 37,295,993,606.53
  5. Step 5: Solve for x
    x = 37,295,993,606.53/218,936.06
  6. Step 6: Final answer
    x = 170,351.07

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1.5x scale

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.