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Finding the Fourth Proportional to 281,276.32, 421,620.72 and 168,956.32

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Solution

The fourth proportional to 281,276.32, 421,620.72 and 168,956.32 is: 253,258.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,276.32 : 421,620.72 = 168,956.32 : x
  2. Step 2: Convert to fraction form
    281,276.32/421,620.72 = 168,956.32/x
  3. Step 3: Cross multiply
    281,276.32x = 421,620.72 × 168,956.32
  4. Step 4: Simplify right side
    281,276.32x = 71,235,485,286.95
  5. Step 5: Solve for x
    x = 71,235,485,286.95/281,276.32
  6. Step 6: Final answer
    x = 253,258.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.