Home / 211,486.32-291,855.66-115,992.78

Finding the Fourth Proportional to 211,486.32, 291,855.66 and 115,992.78

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Solution

The fourth proportional to 211,486.32, 291,855.66 and 115,992.78 is: 160,072.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,486.32 : 291,855.66 = 115,992.78 : x
  2. Step 2: Convert to fraction form
    211,486.32/291,855.66 = 115,992.78/x
  3. Step 3: Cross multiply
    211,486.32x = 291,855.66 × 115,992.78
  4. Step 4: Simplify right side
    211,486.32x = 33,853,149,362.13
  5. Step 5: Solve for x
    x = 33,853,149,362.13/211,486.32
  6. Step 6: Final answer
    x = 160,072.53

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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.