Home / 215,318.25-322,767.81-102,969.32

Finding the Fourth Proportional to 215,318.25, 322,767.81 and 102,969.32

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Solution

The fourth proportional to 215,318.25, 322,767.81 and 102,969.32 is: 154,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,318.25 : 322,767.81 = 102,969.32 : x
  2. Step 2: Convert to fraction form
    215,318.25/322,767.81 = 102,969.32/x
  3. Step 3: Cross multiply
    215,318.25x = 322,767.81 × 102,969.32
  4. Step 4: Simplify right side
    215,318.25x = 33,235,180,299.75
  5. Step 5: Solve for x
    x = 33,235,180,299.75/215,318.25
  6. Step 6: Final answer
    x = 154,353.75

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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.