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Finding the Fourth Proportional to 375,391.31, 518,040.22 and 205,628.27

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Solution

The fourth proportional to 375,391.31, 518,040.22 and 205,628.27 is: 283,767.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,391.31 : 518,040.22 = 205,628.27 : x
  2. Step 2: Convert to fraction form
    375,391.31/518,040.22 = 205,628.27/x
  3. Step 3: Cross multiply
    375,391.31x = 518,040.22 × 205,628.27
  4. Step 4: Simplify right side
    375,391.31x = 106,523,711,638.82
  5. Step 5: Solve for x
    x = 106,523,711,638.82/375,391.31
  6. Step 6: Final answer
    x = 283,767.13

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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.