Home / 220,939.12-304,798.98-149,293

Finding the Fourth Proportional to 220,939.12, 304,798.98 and 149,293

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Solution

The fourth proportional to 220,939.12, 304,798.98 and 149,293 is: 205,958.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,939.12 : 304,798.98 = 149,293 : x
  2. Step 2: Convert to fraction form
    220,939.12/304,798.98 = 149,293/x
  3. Step 3: Cross multiply
    220,939.12x = 304,798.98 × 149,293
  4. Step 4: Simplify right side
    220,939.12x = 45,504,354,121.14
  5. Step 5: Solve for x
    x = 45,504,354,121.14/220,939.12
  6. Step 6: Final answer
    x = 205,958.79

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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.