Home / 258,239.36-387,381.33-71,250.86

Finding the Fourth Proportional to 258,239.36, 387,381.33 and 71,250.86

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Solution

The fourth proportional to 258,239.36, 387,381.33 and 71,250.86 is: 106,882.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,239.36 : 387,381.33 = 71,250.86 : x
  2. Step 2: Convert to fraction form
    258,239.36/387,381.33 = 71,250.86/x
  3. Step 3: Cross multiply
    258,239.36x = 387,381.33 × 71,250.86
  4. Step 4: Simplify right side
    258,239.36x = 27,601,250,973.54
  5. Step 5: Solve for x
    x = 27,601,250,973.54/258,239.36
  6. Step 6: Final answer
    x = 106,882.43

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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.