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Finding the Fourth Proportional to 183,449.20, 274,914.60 and 127,980.40

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Solution

The fourth proportional to 183,449.20, 274,914.60 and 127,980.40 is: 191,789.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,449.20 : 274,914.60 = 127,980.40 : x
  2. Step 2: Convert to fraction form
    183,449.20/274,914.60 = 127,980.40/x
  3. Step 3: Cross multiply
    183,449.20x = 274,914.60 × 127,980.40
  4. Step 4: Simplify right side
    183,449.20x = 35,183,680,473.84
  5. Step 5: Solve for x
    x = 35,183,680,473.84/183,449.20
  6. Step 6: Final answer
    x = 191,789.77

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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.