Home / 211,512.78-316,846.08-127,226.43

Finding the Fourth Proportional to 211,512.78, 316,846.08 and 127,226.43

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Solution

The fourth proportional to 211,512.78, 316,846.08 and 127,226.43 is: 190,585.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,512.78 : 316,846.08 = 127,226.43 : x
  2. Step 2: Convert to fraction form
    211,512.78/316,846.08 = 127,226.43/x
  3. Step 3: Cross multiply
    211,512.78x = 316,846.08 × 127,226.43
  4. Step 4: Simplify right side
    211,512.78x = 40,311,195,617.89
  5. Step 5: Solve for x
    x = 40,311,195,617.89/211,512.78
  6. Step 6: Final answer
    x = 190,585.15

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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.