Home / 322,721.49-445,370.13-186,761.82

Finding the Fourth Proportional to 322,721.49, 445,370.13 and 186,761.82

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Solution

The fourth proportional to 322,721.49, 445,370.13 and 186,761.82 is: 257,739.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,721.49 : 445,370.13 = 186,761.82 : x
  2. Step 2: Convert to fraction form
    322,721.49/445,370.13 = 186,761.82/x
  3. Step 3: Cross multiply
    322,721.49x = 445,370.13 × 186,761.82
  4. Step 4: Simplify right side
    322,721.49x = 83,178,136,052.44
  5. Step 5: Solve for x
    x = 83,178,136,052.44/322,721.49
  6. Step 6: Final answer
    x = 257,739.69

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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.