Home / 216,286.10-324,462.88-103,945.38

Finding the Fourth Proportional to 216,286.10, 324,462.88 and 103,945.38

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Solution

The fourth proportional to 216,286.10, 324,462.88 and 103,945.38 is: 155,934.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,286.10 : 324,462.88 = 103,945.38 : x
  2. Step 2: Convert to fraction form
    216,286.10/324,462.88 = 103,945.38/x
  3. Step 3: Cross multiply
    216,286.10x = 324,462.88 × 103,945.38
  4. Step 4: Simplify right side
    216,286.10x = 33,726,417,357.49
  5. Step 5: Solve for x
    x = 33,726,417,357.49/216,286.10
  6. Step 6: Final answer
    x = 155,934.28

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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.