Home / 258,669.53-356,961.38-143,946.21

Finding the Fourth Proportional to 258,669.53, 356,961.38 and 143,946.21

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Solution

The fourth proportional to 258,669.53, 356,961.38 and 143,946.21 is: 198,644.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,669.53 : 356,961.38 = 143,946.21 : x
  2. Step 2: Convert to fraction form
    258,669.53/356,961.38 = 143,946.21/x
  3. Step 3: Cross multiply
    258,669.53x = 356,961.38 × 143,946.21
  4. Step 4: Simplify right side
    258,669.53x = 51,383,239,195.94
  5. Step 5: Solve for x
    x = 51,383,239,195.94/258,669.53
  6. Step 6: Final answer
    x = 198,644.34

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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.