Home / 258,226.89-387,362.66-71,238.39

Finding the Fourth Proportional to 258,226.89, 387,362.66 and 71,238.39

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Solution

The fourth proportional to 258,226.89, 387,362.66 and 71,238.39 is: 106,863.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,226.89 : 387,362.66 = 71,238.39 : x
  2. Step 2: Convert to fraction form
    258,226.89/387,362.66 = 71,238.39/x
  3. Step 3: Cross multiply
    258,226.89x = 387,362.66 × 71,238.39
  4. Step 4: Simplify right side
    258,226.89x = 27,595,092,244.52
  5. Step 5: Solve for x
    x = 27,595,092,244.52/258,226.89
  6. Step 6: Final answer
    x = 106,863.74

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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.