Home / 258,917.77-388,425.66-101,136.25

Finding the Fourth Proportional to 258,917.77, 388,425.66 and 101,136.25

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Solution

The fourth proportional to 258,917.77, 388,425.66 and 101,136.25 is: 151,723.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,917.77 : 388,425.66 = 101,136.25 : x
  2. Step 2: Convert to fraction form
    258,917.77/388,425.66 = 101,136.25/x
  3. Step 3: Cross multiply
    258,917.77x = 388,425.66 × 101,136.25
  4. Step 4: Simplify right side
    258,917.77x = 39,283,914,656.18
  5. Step 5: Solve for x
    x = 39,283,914,656.18/258,917.77
  6. Step 6: Final answer
    x = 151,723.52

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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.