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Finding the Fourth Proportional to 275,005, 379,219.06 and 203,534.92

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Solution

The fourth proportional to 275,005, 379,219.06 and 203,534.92 is: 280,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,005 : 379,219.06 = 203,534.92 : x
  2. Step 2: Convert to fraction form
    275,005/379,219.06 = 203,534.92/x
  3. Step 3: Cross multiply
    275,005x = 379,219.06 × 203,534.92
  4. Step 4: Simplify right side
    275,005x = 77,184,321,039.58
  5. Step 5: Solve for x
    x = 77,184,321,039.58/275,005
  6. Step 6: Final answer
    x = 280,665.16

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1.5x scale

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.