Home / 210,729.66-290,806.92-115,236.42

Finding the Fourth Proportional to 210,729.66, 290,806.92 and 115,236.42

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Solution

The fourth proportional to 210,729.66, 290,806.92 and 115,236.42 is: 159,026.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,729.66 : 290,806.92 = 115,236.42 : x
  2. Step 2: Convert to fraction form
    210,729.66/290,806.92 = 115,236.42/x
  3. Step 3: Cross multiply
    210,729.66x = 290,806.92 × 115,236.42
  4. Step 4: Simplify right side
    210,729.66x = 33,511,548,372.03
  5. Step 5: Solve for x
    x = 33,511,548,372.03/210,729.66
  6. Step 6: Final answer
    x = 159,026.25

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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.