Home / 258,122.94-387,182.88-100,351.38

Finding the Fourth Proportional to 258,122.94, 387,182.88 and 100,351.38

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Solution

The fourth proportional to 258,122.94, 387,182.88 and 100,351.38 is: 150,526.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,122.94 : 387,182.88 = 100,351.38 : x
  2. Step 2: Convert to fraction form
    258,122.94/387,182.88 = 100,351.38/x
  3. Step 3: Cross multiply
    258,122.94x = 387,182.88 × 100,351.38
  4. Step 4: Simplify right side
    258,122.94x = 38,854,336,320.37
  5. Step 5: Solve for x
    x = 38,854,336,320.37/258,122.94
  6. Step 6: Final answer
    x = 150,526.48

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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.