Home / 308,669.13-425,943.36-172,679.58

Finding the Fourth Proportional to 308,669.13, 425,943.36 and 172,679.58

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Solution

The fourth proportional to 308,669.13, 425,943.36 and 172,679.58 is: 238,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,669.13 : 425,943.36 = 172,679.58 : x
  2. Step 2: Convert to fraction form
    308,669.13/425,943.36 = 172,679.58/x
  3. Step 3: Cross multiply
    308,669.13x = 425,943.36 × 172,679.58
  4. Step 4: Simplify right side
    308,669.13x = 73,551,720,508.59
  5. Step 5: Solve for x
    x = 73,551,720,508.59/308,669.13
  6. Step 6: Final answer
    x = 238,286.61

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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.