Home / 211,004.52-291,209.63-120,382.83

Finding the Fourth Proportional to 211,004.52, 291,209.63 and 120,382.83

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Solution

The fourth proportional to 211,004.52, 291,209.63 and 120,382.83 is: 166,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,004.52 : 291,209.63 = 120,382.83 : x
  2. Step 2: Convert to fraction form
    211,004.52/291,209.63 = 120,382.83/x
  3. Step 3: Cross multiply
    211,004.52x = 291,209.63 × 120,382.83
  4. Step 4: Simplify right side
    211,004.52x = 35,056,639,382.65
  5. Step 5: Solve for x
    x = 35,056,639,382.65/211,004.52
  6. Step 6: Final answer
    x = 166,141.65

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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.