Home / 259,327.49-388,897.71-109,579.38

Finding the Fourth Proportional to 259,327.49, 388,897.71 and 109,579.38

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Solution

The fourth proportional to 259,327.49, 388,897.71 and 109,579.38 is: 164,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,327.49 : 388,897.71 = 109,579.38 : x
  2. Step 2: Convert to fraction form
    259,327.49/388,897.71 = 109,579.38/x
  3. Step 3: Cross multiply
    259,327.49x = 388,897.71 × 109,579.38
  4. Step 4: Simplify right side
    259,327.49x = 42,615,169,945.22
  5. Step 5: Solve for x
    x = 42,615,169,945.22/259,327.49
  6. Step 6: Final answer
    x = 164,329.55

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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.