Home / 258,229.35-387,366.34-71,240.85

Finding the Fourth Proportional to 258,229.35, 387,366.34 and 71,240.85

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Solution

The fourth proportional to 258,229.35, 387,366.34 and 71,240.85 is: 106,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,229.35 : 387,366.34 = 71,240.85 : x
  2. Step 2: Convert to fraction form
    258,229.35/387,366.34 = 71,240.85/x
  3. Step 3: Cross multiply
    258,229.35x = 387,366.34 × 71,240.85
  4. Step 4: Simplify right side
    258,229.35x = 27,596,305,386.16
  5. Step 5: Solve for x
    x = 27,596,305,386.16/258,229.35
  6. Step 6: Final answer
    x = 106,867.43

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1.5x scale

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.