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Finding the Fourth Proportional to 447,955.56, 618,072.60 and 254,321.28

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Solution

The fourth proportional to 447,955.56, 618,072.60 and 254,321.28 is: 350,903.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,955.56 : 618,072.60 = 254,321.28 : x
  2. Step 2: Convert to fraction form
    447,955.56/618,072.60 = 254,321.28/x
  3. Step 3: Cross multiply
    447,955.56x = 618,072.60 × 254,321.28
  4. Step 4: Simplify right side
    447,955.56x = 157,189,014,764.93
  5. Step 5: Solve for x
    x = 157,189,014,764.93/447,955.56
  6. Step 6: Final answer
    x = 350,903.14

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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.