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Finding the Fourth Proportional to 545,765.27, 818,735.39 and 230,268.65

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Solution

The fourth proportional to 545,765.27, 818,735.39 and 230,268.65 is: 345,439.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,765.27 : 818,735.39 = 230,268.65 : x
  2. Step 2: Convert to fraction form
    545,765.27/818,735.39 = 230,268.65/x
  3. Step 3: Cross multiply
    545,765.27x = 818,735.39 × 230,268.65
  4. Step 4: Simplify right side
    545,765.27x = 188,529,091,811.18
  5. Step 5: Solve for x
    x = 188,529,091,811.18/545,765.27
  6. Step 6: Final answer
    x = 345,439.88

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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.