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Finding the Fourth Proportional to 299,725.78, 449,810.48 and 141,954.61

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Solution

The fourth proportional to 299,725.78, 449,810.48 and 141,954.61 is: 213,036.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,725.78 : 449,810.48 = 141,954.61 : x
  2. Step 2: Convert to fraction form
    299,725.78/449,810.48 = 141,954.61/x
  3. Step 3: Cross multiply
    299,725.78x = 449,810.48 × 141,954.61
  4. Step 4: Simplify right side
    299,725.78x = 63,852,670,552.54
  5. Step 5: Solve for x
    x = 63,852,670,552.54/299,725.78
  6. Step 6: Final answer
    x = 213,036.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.