Home / 211,438.36-291,788.94-115,939.36

Finding the Fourth Proportional to 211,438.36, 291,788.94 and 115,939.36

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Solution

The fourth proportional to 211,438.36, 291,788.94 and 115,939.36 is: 159,998.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,438.36 : 291,788.94 = 115,939.36 : x
  2. Step 2: Convert to fraction form
    211,438.36/291,788.94 = 115,939.36/x
  3. Step 3: Cross multiply
    211,438.36x = 291,788.94 × 115,939.36
  4. Step 4: Simplify right side
    211,438.36x = 33,829,822,958.68
  5. Step 5: Solve for x
    x = 33,829,822,958.68/211,438.36
  6. Step 6: Final answer
    x = 159,998.51

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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.