Home / 211,513.78-316,847.58-127,227.43

Finding the Fourth Proportional to 211,513.78, 316,847.58 and 127,227.43

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Solution

The fourth proportional to 211,513.78, 316,847.58 and 127,227.43 is: 190,586.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,513.78 : 316,847.58 = 127,227.43 : x
  2. Step 2: Convert to fraction form
    211,513.78/316,847.58 = 127,227.43/x
  3. Step 3: Cross multiply
    211,513.78x = 316,847.58 × 127,227.43
  4. Step 4: Simplify right side
    211,513.78x = 40,311,703,305.12
  5. Step 5: Solve for x
    x = 40,311,703,305.12/211,513.78
  6. Step 6: Final answer
    x = 190,586.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.