Home / 259,365.50-388,954.67-109,617.38

Finding the Fourth Proportional to 259,365.50, 388,954.67 and 109,617.38

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Solution

The fourth proportional to 259,365.50, 388,954.67 and 109,617.38 is: 164,386.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,365.50 : 388,954.67 = 109,617.38 : x
  2. Step 2: Convert to fraction form
    259,365.50/388,954.67 = 109,617.38/x
  3. Step 3: Cross multiply
    259,365.50x = 388,954.67 × 109,617.38
  4. Step 4: Simplify right side
    259,365.50x = 42,636,189,371.30
  5. Step 5: Solve for x
    x = 42,636,189,371.30/259,365.50
  6. Step 6: Final answer
    x = 164,386.51

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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.