Home / 216,198.18-324,314.55-75,988.26

Finding the Fourth Proportional to 216,198.18, 324,314.55 and 75,988.26

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Solution

The fourth proportional to 216,198.18, 324,314.55 and 75,988.26 is: 113,988.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,198.18 : 324,314.55 = 75,988.26 : x
  2. Step 2: Convert to fraction form
    216,198.18/324,314.55 = 75,988.26/x
  3. Step 3: Cross multiply
    216,198.18x = 324,314.55 × 75,988.26
  4. Step 4: Simplify right side
    216,198.18x = 24,644,098,347.18
  5. Step 5: Solve for x
    x = 24,644,098,347.18/216,198.18
  6. Step 6: Final answer
    x = 113,988.46

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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.