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Finding the Fourth Proportional to 203,334.51, 280,534.41 and 122,731.41

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Solution

The fourth proportional to 203,334.51, 280,534.41 and 122,731.41 is: 169,328.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,334.51 : 280,534.41 = 122,731.41 : x
  2. Step 2: Convert to fraction form
    203,334.51/280,534.41 = 122,731.41/x
  3. Step 3: Cross multiply
    203,334.51x = 280,534.41 × 122,731.41
  4. Step 4: Simplify right side
    203,334.51x = 34,430,383,692.82
  5. Step 5: Solve for x
    x = 34,430,383,692.82/203,334.51
  6. Step 6: Final answer
    x = 169,328.78

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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.