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Finding the Fourth Proportional to 203,539.52, 281,023.08 and 127,088.48

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Solution

The fourth proportional to 203,539.52, 281,023.08 and 127,088.48 is: 175,468.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,539.52 : 281,023.08 = 127,088.48 : x
  2. Step 2: Convert to fraction form
    203,539.52/281,023.08 = 127,088.48/x
  3. Step 3: Cross multiply
    203,539.52x = 281,023.08 × 127,088.48
  4. Step 4: Simplify right side
    203,539.52x = 35,714,796,082.12
  5. Step 5: Solve for x
    x = 35,714,796,082.12/203,539.52
  6. Step 6: Final answer
    x = 175,468.61

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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.