Home / 308,922.88-426,214.44-172,936.80

Finding the Fourth Proportional to 308,922.88, 426,214.44 and 172,936.80

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Solution

The fourth proportional to 308,922.88, 426,214.44 and 172,936.80 is: 238,597.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,922.88 : 426,214.44 = 172,936.80 : x
  2. Step 2: Convert to fraction form
    308,922.88/426,214.44 = 172,936.80/x
  3. Step 3: Cross multiply
    308,922.88x = 426,214.44 × 172,936.80
  4. Step 4: Simplify right side
    308,922.88x = 73,708,161,367.39
  5. Step 5: Solve for x
    x = 73,708,161,367.39/308,922.88
  6. Step 6: Final answer
    x = 238,597.29

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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.