Home / 258,520.22-356,757.89-145,342.97

Finding the Fourth Proportional to 258,520.22, 356,757.89 and 145,342.97

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Solution

The fourth proportional to 258,520.22, 356,757.89 and 145,342.97 is: 200,573.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,520.22 : 356,757.89 = 145,342.97 : x
  2. Step 2: Convert to fraction form
    258,520.22/356,757.89 = 145,342.97/x
  3. Step 3: Cross multiply
    258,520.22x = 356,757.89 × 145,342.97
  4. Step 4: Simplify right side
    258,520.22x = 51,852,250,130.87
  5. Step 5: Solve for x
    x = 51,852,250,130.87/258,520.22
  6. Step 6: Final answer
    x = 200,573.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.