Home / 259,090.43-388,635.63-101,208.15

Finding the Fourth Proportional to 259,090.43, 388,635.63 and 101,208.15

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Solution

The fourth proportional to 259,090.43, 388,635.63 and 101,208.15 is: 151,812.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,090.43 : 388,635.63 = 101,208.15 : x
  2. Step 2: Convert to fraction form
    259,090.43/388,635.63 = 101,208.15/x
  3. Step 3: Cross multiply
    259,090.43x = 388,635.63 × 101,208.15
  4. Step 4: Simplify right side
    259,090.43x = 39,333,093,136.38
  5. Step 5: Solve for x
    x = 39,333,093,136.38/259,090.43
  6. Step 6: Final answer
    x = 151,812.22

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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.