Home / 258,104.85-356,241.57-143,422.83

Finding the Fourth Proportional to 258,104.85, 356,241.57 and 143,422.83

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Solution

The fourth proportional to 258,104.85, 356,241.57 and 143,422.83 is: 197,955.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,104.85 : 356,241.57 = 143,422.83 : x
  2. Step 2: Convert to fraction form
    258,104.85/356,241.57 = 143,422.83/x
  3. Step 3: Cross multiply
    258,104.85x = 356,241.57 × 143,422.83
  4. Step 4: Simplify right side
    258,104.85x = 51,093,174,133.04
  5. Step 5: Solve for x
    x = 51,093,174,133.04/258,104.85
  6. Step 6: Final answer
    x = 197,955.11

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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.