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Finding the Fourth Proportional to 203,485.65, 305,228.48 and 164,119.65

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Solution

The fourth proportional to 203,485.65, 305,228.48 and 164,119.65 is: 246,179.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,485.65 : 305,228.48 = 164,119.65 : x
  2. Step 2: Convert to fraction form
    203,485.65/305,228.48 = 164,119.65/x
  3. Step 3: Cross multiply
    203,485.65x = 305,228.48 × 164,119.65
  4. Step 4: Simplify right side
    203,485.65x = 50,093,990,487.03
  5. Step 5: Solve for x
    x = 50,093,990,487.03/203,485.65
  6. Step 6: Final answer
    x = 246,179.48

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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.