Home / 202,942.49-304,415.79-90,628.43

Finding the Fourth Proportional to 202,942.49, 304,415.79 and 90,628.43

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Solution

The fourth proportional to 202,942.49, 304,415.79 and 90,628.43 is: 135,943.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,942.49 : 304,415.79 = 90,628.43 : x
  2. Step 2: Convert to fraction form
    202,942.49/304,415.79 = 90,628.43/x
  3. Step 3: Cross multiply
    202,942.49x = 304,415.79 × 90,628.43
  4. Step 4: Simplify right side
    202,942.49x = 27,588,725,114.91
  5. Step 5: Solve for x
    x = 27,588,725,114.91/202,942.49
  6. Step 6: Final answer
    x = 135,943.56

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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.