Home / 215,237.22-322,856.13-102,891.03

Finding the Fourth Proportional to 215,237.22, 322,856.13 and 102,891.03

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Solution

The fourth proportional to 215,237.22, 322,856.13 and 102,891.03 is: 154,336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,237.22 : 322,856.13 = 102,891.03 : x
  2. Step 2: Convert to fraction form
    215,237.22/322,856.13 = 102,891.03/x
  3. Step 3: Cross multiply
    215,237.22x = 322,856.13 × 102,891.03
  4. Step 4: Simplify right side
    215,237.22x = 33,218,999,757.51
  5. Step 5: Solve for x
    x = 33,218,999,757.51/215,237.22
  6. Step 6: Final answer
    x = 154,336.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.