Home / 211,065.20-291,267.08-115,571.90

Finding the Fourth Proportional to 211,065.20, 291,267.08 and 115,571.90

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Solution

The fourth proportional to 211,065.20, 291,267.08 and 115,571.90 is: 159,487.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,065.20 : 291,267.08 = 115,571.90 : x
  2. Step 2: Convert to fraction form
    211,065.20/291,267.08 = 115,571.90/x
  3. Step 3: Cross multiply
    211,065.20x = 291,267.08 × 115,571.90
  4. Step 4: Simplify right side
    211,065.20x = 33,662,289,843.05
  5. Step 5: Solve for x
    x = 33,662,289,843.05/211,065.20
  6. Step 6: Final answer
    x = 159,487.64

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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.