Home / 210,517.80-290,511.14-115,022.46

Finding the Fourth Proportional to 210,517.80, 290,511.14 and 115,022.46

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Solution

The fourth proportional to 210,517.80, 290,511.14 and 115,022.46 is: 158,729.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,517.80 : 290,511.14 = 115,022.46 : x
  2. Step 2: Convert to fraction form
    210,517.80/290,511.14 = 115,022.46/x
  3. Step 3: Cross multiply
    210,517.80x = 290,511.14 × 115,022.46
  4. Step 4: Simplify right side
    210,517.80x = 33,415,305,980.20
  5. Step 5: Solve for x
    x = 33,415,305,980.20/210,517.80
  6. Step 6: Final answer
    x = 158,729.12

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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.