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Finding the Fourth Proportional to 263,999.60, 395,999.40 and 214,233.20

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Solution

The fourth proportional to 263,999.60, 395,999.40 and 214,233.20 is: 321,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,999.60 : 395,999.40 = 214,233.20 : x
  2. Step 2: Convert to fraction form
    263,999.60/395,999.40 = 214,233.20/x
  3. Step 3: Cross multiply
    263,999.60x = 395,999.40 × 214,233.20
  4. Step 4: Simplify right side
    263,999.60x = 84,836,218,660.08
  5. Step 5: Solve for x
    x = 84,836,218,660.08/263,999.60
  6. Step 6: Final answer
    x = 321,349.80

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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.