Home / 299,828.70-449,979.06-139,822.31

Finding the Fourth Proportional to 299,828.70, 449,979.06 and 139,822.31

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Solution

The fourth proportional to 299,828.70, 449,979.06 and 139,822.31 is: 209,843.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,828.70 : 449,979.06 = 139,822.31 : x
  2. Step 2: Convert to fraction form
    299,828.70/449,979.06 = 139,822.31/x
  3. Step 3: Cross multiply
    299,828.70x = 449,979.06 × 139,822.31
  4. Step 4: Simplify right side
    299,828.70x = 62,917,109,370.93
  5. Step 5: Solve for x
    x = 62,917,109,370.93/299,828.70
  6. Step 6: Final answer
    x = 209,843.52

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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.