Home / 220,747.86-304,628.99-135,863.10

Finding the Fourth Proportional to 220,747.86, 304,628.99 and 135,863.10

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Solution

The fourth proportional to 220,747.86, 304,628.99 and 135,863.10 is: 187,489.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,747.86 : 304,628.99 = 135,863.10 : x
  2. Step 2: Convert to fraction form
    220,747.86/304,628.99 = 135,863.10/x
  3. Step 3: Cross multiply
    220,747.86x = 304,628.99 × 135,863.10
  4. Step 4: Simplify right side
    220,747.86x = 41,387,838,251.95
  5. Step 5: Solve for x
    x = 41,387,838,251.95/220,747.86
  6. Step 6: Final answer
    x = 187,489.19

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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.