Home / 211,938.38-318,016.67-117,150.96

Finding the Fourth Proportional to 211,938.38, 318,016.67 and 117,150.96

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Solution

The fourth proportional to 211,938.38, 318,016.67 and 117,150.96 is: 175,786.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,938.38 : 318,016.67 = 117,150.96 : x
  2. Step 2: Convert to fraction form
    211,938.38/318,016.67 = 117,150.96/x
  3. Step 3: Cross multiply
    211,938.38x = 318,016.67 × 117,150.96
  4. Step 4: Simplify right side
    211,938.38x = 37,255,958,793.31
  5. Step 5: Solve for x
    x = 37,255,958,793.31/211,938.38
  6. Step 6: Final answer
    x = 175,786.75

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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.