Home / 215,264.28-322,896.69-102,918.09

Finding the Fourth Proportional to 215,264.28, 322,896.69 and 102,918.09

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Solution

The fourth proportional to 215,264.28, 322,896.69 and 102,918.09 is: 154,377.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,264.28 : 322,896.69 = 102,918.09 : x
  2. Step 2: Convert to fraction form
    215,264.28/322,896.69 = 102,918.09/x
  3. Step 3: Cross multiply
    215,264.28x = 322,896.69 × 102,918.09
  4. Step 4: Simplify right side
    215,264.28x = 33,231,910,602.12
  5. Step 5: Solve for x
    x = 33,231,910,602.12/215,264.28
  6. Step 6: Final answer
    x = 154,377.26

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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.