Home / 258,701.42-356,998.92-143,976.26

Finding the Fourth Proportional to 258,701.42, 356,998.92 and 143,976.26

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Solution

The fourth proportional to 258,701.42, 356,998.92 and 143,976.26 is: 198,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,701.42 : 356,998.92 = 143,976.26 : x
  2. Step 2: Convert to fraction form
    258,701.42/356,998.92 = 143,976.26/x
  3. Step 3: Cross multiply
    258,701.42x = 356,998.92 × 143,976.26
  4. Step 4: Simplify right side
    258,701.42x = 51,399,369,325.64
  5. Step 5: Solve for x
    x = 51,399,369,325.64/258,701.42
  6. Step 6: Final answer
    x = 198,682.21

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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.