Home / 211,198.73-291,464.75-130,668.17

Finding the Fourth Proportional to 211,198.73, 291,464.75 and 130,668.17

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Solution

The fourth proportional to 211,198.73, 291,464.75 and 130,668.17 is: 180,328.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,198.73 : 291,464.75 = 130,668.17 : x
  2. Step 2: Convert to fraction form
    211,198.73/291,464.75 = 130,668.17/x
  3. Step 3: Cross multiply
    211,198.73x = 291,464.75 × 130,668.17
  4. Step 4: Simplify right side
    211,198.73x = 38,085,165,502.01
  5. Step 5: Solve for x
    x = 38,085,165,502.01/211,198.73
  6. Step 6: Final answer
    x = 180,328.57

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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.