Home / 258,987.06-388,299.65-114,814.46

Finding the Fourth Proportional to 258,987.06, 388,299.65 and 114,814.46

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Solution

The fourth proportional to 258,987.06, 388,299.65 and 114,814.46 is: 172,141.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,987.06 : 388,299.65 = 114,814.46 : x
  2. Step 2: Convert to fraction form
    258,987.06/388,299.65 = 114,814.46/x
  3. Step 3: Cross multiply
    258,987.06x = 388,299.65 × 114,814.46
  4. Step 4: Simplify right side
    258,987.06x = 44,582,415,029.62
  5. Step 5: Solve for x
    x = 44,582,415,029.62/258,987.06
  6. Step 6: Final answer
    x = 172,141.48

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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.