Home / 211,083.35-291,286.27-115,588.40

Finding the Fourth Proportional to 211,083.35, 291,286.27 and 115,588.40

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Solution

The fourth proportional to 211,083.35, 291,286.27 and 115,588.40 is: 159,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,083.35 : 291,286.27 = 115,588.40 : x
  2. Step 2: Convert to fraction form
    211,083.35/291,286.27 = 115,588.40/x
  3. Step 3: Cross multiply
    211,083.35x = 291,286.27 × 115,588.40
  4. Step 4: Simplify right side
    211,083.35x = 33,669,313,891.27
  5. Step 5: Solve for x
    x = 33,669,313,891.27/211,083.35
  6. Step 6: Final answer
    x = 159,507.20

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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.