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Finding the Fourth Proportional to 375,136.97, 517,738.29 and 213,955.07

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Solution

The fourth proportional to 375,136.97, 517,738.29 and 213,955.07 is: 295,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,136.97 : 517,738.29 = 213,955.07 : x
  2. Step 2: Convert to fraction form
    375,136.97/517,738.29 = 213,955.07/x
  3. Step 3: Cross multiply
    375,136.97x = 517,738.29 × 213,955.07
  4. Step 4: Simplify right side
    375,136.97x = 110,772,729,489.94
  5. Step 5: Solve for x
    x = 110,772,729,489.94/375,136.97
  6. Step 6: Final answer
    x = 295,286.10

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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.