Home / 258,729.33-388,066.70-69,208.82

Finding the Fourth Proportional to 258,729.33, 388,066.70 and 69,208.82

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Solution

The fourth proportional to 258,729.33, 388,066.70 and 69,208.82 is: 103,805.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,729.33 : 388,066.70 = 69,208.82 : x
  2. Step 2: Convert to fraction form
    258,729.33/388,066.70 = 69,208.82/x
  3. Step 3: Cross multiply
    258,729.33x = 388,066.70 × 69,208.82
  4. Step 4: Simplify right side
    258,729.33x = 26,857,638,388.29
  5. Step 5: Solve for x
    x = 26,857,638,388.29/258,729.33
  6. Step 6: Final answer
    x = 103,805.93

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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.