Home / 215,120.44-322,733.58-74,880.28

Finding the Fourth Proportional to 215,120.44, 322,733.58 and 74,880.28

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Solution

The fourth proportional to 215,120.44, 322,733.58 and 74,880.28 is: 112,338.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,120.44 : 322,733.58 = 74,880.28 : x
  2. Step 2: Convert to fraction form
    215,120.44/322,733.58 = 74,880.28/x
  3. Step 3: Cross multiply
    215,120.44x = 322,733.58 × 74,880.28
  4. Step 4: Simplify right side
    215,120.44x = 24,166,380,835.80
  5. Step 5: Solve for x
    x = 24,166,380,835.80/215,120.44
  6. Step 6: Final answer
    x = 112,338.84

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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.