Home / 489,921.19-676,101.94-269,161.33

Finding the Fourth Proportional to 489,921.19, 676,101.94 and 269,161.33

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Solution

The fourth proportional to 489,921.19, 676,101.94 and 269,161.33 is: 371,448.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,921.19 : 676,101.94 = 269,161.33 : x
  2. Step 2: Convert to fraction form
    489,921.19/676,101.94 = 269,161.33/x
  3. Step 3: Cross multiply
    489,921.19x = 676,101.94 × 269,161.33
  4. Step 4: Simplify right side
    489,921.19x = 181,980,496,290.51
  5. Step 5: Solve for x
    x = 181,980,496,290.51/489,921.19
  6. Step 6: Final answer
    x = 371,448.51

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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.