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Finding the Fourth Proportional to 255,322.20, 382,076.10 and 222,403.80

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Solution

The fourth proportional to 255,322.20, 382,076.10 and 222,403.80 is: 332,815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,322.20 : 382,076.10 = 222,403.80 : x
  2. Step 2: Convert to fraction form
    255,322.20/382,076.10 = 222,403.80/x
  3. Step 3: Cross multiply
    255,322.20x = 382,076.10 × 222,403.80
  4. Step 4: Simplify right side
    255,322.20x = 84,975,176,529.18
  5. Step 5: Solve for x
    x = 84,975,176,529.18/255,322.20
  6. Step 6: Final answer
    x = 332,815.46

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.