Home / 258,287.18-356,418.99-143,558.37

Finding the Fourth Proportional to 258,287.18, 356,418.99 and 143,558.37

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Solution

The fourth proportional to 258,287.18, 356,418.99 and 143,558.37 is: 198,100.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,287.18 : 356,418.99 = 143,558.37 : x
  2. Step 2: Convert to fraction form
    258,287.18/356,418.99 = 143,558.37/x
  3. Step 3: Cross multiply
    258,287.18x = 356,418.99 × 143,558.37
  4. Step 4: Simplify right side
    258,287.18x = 51,166,929,241.45
  5. Step 5: Solve for x
    x = 51,166,929,241.45/258,287.18
  6. Step 6: Final answer
    x = 198,100.93

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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.