Home / 211,288.96-291,581-115,793.56

Finding the Fourth Proportional to 211,288.96, 291,581 and 115,793.56

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Solution

The fourth proportional to 211,288.96, 291,581 and 115,793.56 is: 159,796.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,288.96 : 291,581 = 115,793.56 : x
  2. Step 2: Convert to fraction form
    211,288.96/291,581 = 115,793.56/x
  3. Step 3: Cross multiply
    211,288.96x = 291,581 × 115,793.56
  4. Step 4: Simplify right side
    211,288.96x = 33,763,202,018.36
  5. Step 5: Solve for x
    x = 33,763,202,018.36/211,288.96
  6. Step 6: Final answer
    x = 159,796.34

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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.