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Finding the Fourth Proportional to 265,171.75, 397,757.63 and 218,326.21

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Solution

The fourth proportional to 265,171.75, 397,757.63 and 218,326.21 is: 327,489.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,171.75 : 397,757.63 = 218,326.21 : x
  2. Step 2: Convert to fraction form
    265,171.75/397,757.63 = 218,326.21/x
  3. Step 3: Cross multiply
    265,171.75x = 397,757.63 × 218,326.21
  4. Step 4: Simplify right side
    265,171.75x = 86,840,915,407.90
  5. Step 5: Solve for x
    x = 86,840,915,407.90/265,171.75
  6. Step 6: Final answer
    x = 327,489.32

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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.