Home / 258,414.96-356,569.20-143,690.32

Finding the Fourth Proportional to 258,414.96, 356,569.20 and 143,690.32

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Solution

The fourth proportional to 258,414.96, 356,569.20 and 143,690.32 is: 198,268.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,414.96 : 356,569.20 = 143,690.32 : x
  2. Step 2: Convert to fraction form
    258,414.96/356,569.20 = 143,690.32/x
  3. Step 3: Cross multiply
    258,414.96x = 356,569.20 × 143,690.32
  4. Step 4: Simplify right side
    258,414.96x = 51,235,542,450.14
  5. Step 5: Solve for x
    x = 51,235,542,450.14/258,414.96
  6. Step 6: Final answer
    x = 198,268.48

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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.