Home / 196,019.26-270,494.11-115,431.21

Finding the Fourth Proportional to 196,019.26, 270,494.11 and 115,431.21

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Solution

The fourth proportional to 196,019.26, 270,494.11 and 115,431.21 is: 159,287.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,019.26 : 270,494.11 = 115,431.21 : x
  2. Step 2: Convert to fraction form
    196,019.26/270,494.11 = 115,431.21/x
  3. Step 3: Cross multiply
    196,019.26x = 270,494.11 × 115,431.21
  4. Step 4: Simplify right side
    196,019.26x = 31,223,462,415.17
  5. Step 5: Solve for x
    x = 31,223,462,415.17/196,019.26
  6. Step 6: Final answer
    x = 159,287.73

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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.