Home / 203,376.37-280,662.20-111,504.30

Finding the Fourth Proportional to 203,376.37, 280,662.20 and 111,504.30

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Solution

The fourth proportional to 203,376.37, 280,662.20 and 111,504.30 is: 153,877.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,376.37 : 280,662.20 = 111,504.30 : x
  2. Step 2: Convert to fraction form
    203,376.37/280,662.20 = 111,504.30/x
  3. Step 3: Cross multiply
    203,376.37x = 280,662.20 × 111,504.30
  4. Step 4: Simplify right side
    203,376.37x = 31,295,040,955.60
  5. Step 5: Solve for x
    x = 31,295,040,955.60/203,376.37
  6. Step 6: Final answer
    x = 153,877.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.