Home / 211,469.48-291,836.32-115,979.66

Finding the Fourth Proportional to 211,469.48, 291,836.32 and 115,979.66

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Solution

The fourth proportional to 211,469.48, 291,836.32 and 115,979.66 is: 160,056.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,469.48 : 291,836.32 = 115,979.66 : x
  2. Step 2: Convert to fraction form
    211,469.48/291,836.32 = 115,979.66/x
  3. Step 3: Cross multiply
    211,469.48x = 291,836.32 × 115,979.66
  4. Step 4: Simplify right side
    211,469.48x = 33,847,077,169.25
  5. Step 5: Solve for x
    x = 33,847,077,169.25/211,469.48
  6. Step 6: Final answer
    x = 160,056.56

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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.