Home / 211,896.28-318,122.22-142,087.96

Finding the Fourth Proportional to 211,896.28, 318,122.22 and 142,087.96

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Solution

The fourth proportional to 211,896.28, 318,122.22 and 142,087.96 is: 213,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,896.28 : 318,122.22 = 142,087.96 : x
  2. Step 2: Convert to fraction form
    211,896.28/318,122.22 = 142,087.96/x
  3. Step 3: Cross multiply
    211,896.28x = 318,122.22 × 142,087.96
  4. Step 4: Simplify right side
    211,896.28x = 45,201,337,270.47
  5. Step 5: Solve for x
    x = 45,201,337,270.47/211,896.28
  6. Step 6: Final answer
    x = 213,318.22

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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.