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Finding the Fourth Proportional to 203,751.50, 281,178.15 and 127,314.95

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Solution

The fourth proportional to 203,751.50, 281,178.15 and 127,314.95 is: 175,695.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,751.50 : 281,178.15 = 127,314.95 : x
  2. Step 2: Convert to fraction form
    203,751.50/281,178.15 = 127,314.95/x
  3. Step 3: Cross multiply
    203,751.50x = 281,178.15 × 127,314.95
  4. Step 4: Simplify right side
    203,751.50x = 35,798,181,471.77
  5. Step 5: Solve for x
    x = 35,798,181,471.77/203,751.50
  6. Step 6: Final answer
    x = 175,695.31

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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.