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Finding the Fourth Proportional to 217,797.88, 300,662.10 and 145,321.24

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Solution

The fourth proportional to 217,797.88, 300,662.10 and 145,321.24 is: 200,610.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,797.88 : 300,662.10 = 145,321.24 : x
  2. Step 2: Convert to fraction form
    217,797.88/300,662.10 = 145,321.24/x
  3. Step 3: Cross multiply
    217,797.88x = 300,662.10 × 145,321.24
  4. Step 4: Simplify right side
    217,797.88x = 43,692,589,193.00
  5. Step 5: Solve for x
    x = 43,692,589,193.00/217,797.88
  6. Step 6: Final answer
    x = 200,610.72

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1.5x scale

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.