Home / 258,988.06-388,301.14-114,815.46

Finding the Fourth Proportional to 258,988.06, 388,301.14 and 114,815.46

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Solution

The fourth proportional to 258,988.06, 388,301.14 and 114,815.46 is: 172,142.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,988.06 : 388,301.14 = 114,815.46 : x
  2. Step 2: Convert to fraction form
    258,988.06/388,301.14 = 114,815.46/x
  3. Step 3: Cross multiply
    258,988.06x = 388,301.14 × 114,815.46
  4. Step 4: Simplify right side
    258,988.06x = 44,582,974,007.62
  5. Step 5: Solve for x
    x = 44,582,974,007.62/258,988.06
  6. Step 6: Final answer
    x = 172,142.97

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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.