Home / 258,619.80-356,886.36-142,322.43

Finding the Fourth Proportional to 258,619.80, 356,886.36 and 142,322.43

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Solution

The fourth proportional to 258,619.80, 356,886.36 and 142,322.43 is: 196,400.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,619.80 : 356,886.36 = 142,322.43 : x
  2. Step 2: Convert to fraction form
    258,619.80/356,886.36 = 142,322.43/x
  3. Step 3: Cross multiply
    258,619.80x = 356,886.36 × 142,322.43
  4. Step 4: Simplify right side
    258,619.80x = 50,792,933,989.05
  5. Step 5: Solve for x
    x = 50,792,933,989.05/258,619.80
  6. Step 6: Final answer
    x = 196,400.02

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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.