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Finding the Fourth Proportional to 265,173.26, 397,759.89 and 218,327.72

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Solution

The fourth proportional to 265,173.26, 397,759.89 and 218,327.72 is: 327,491.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,173.26 : 397,759.89 = 218,327.72 : x
  2. Step 2: Convert to fraction form
    265,173.26/397,759.89 = 218,327.72/x
  3. Step 3: Cross multiply
    265,173.26x = 397,759.89 × 218,327.72
  4. Step 4: Simplify right side
    265,173.26x = 86,842,007,902.35
  5. Step 5: Solve for x
    x = 86,842,007,902.35/265,173.26
  6. Step 6: Final answer
    x = 327,491.58

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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.