Home / 308,846.03-426,187.77-172,857.11

Finding the Fourth Proportional to 308,846.03, 426,187.77 and 172,857.11

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Solution

The fourth proportional to 308,846.03, 426,187.77 and 172,857.11 is: 238,531.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,846.03 : 426,187.77 = 172,857.11 : x
  2. Step 2: Convert to fraction form
    308,846.03/426,187.77 = 172,857.11/x
  3. Step 3: Cross multiply
    308,846.03x = 426,187.77 × 172,857.11
  4. Step 4: Simplify right side
    308,846.03x = 73,669,586,239.54
  5. Step 5: Solve for x
    x = 73,669,586,239.54/308,846.03
  6. Step 6: Final answer
    x = 238,531.76

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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.