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Finding the Fourth Proportional to 380,037.60, 570,142.80 and 222,184.80

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Solution

The fourth proportional to 380,037.60, 570,142.80 and 222,184.80 is: 333,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,037.60 : 570,142.80 = 222,184.80 : x
  2. Step 2: Convert to fraction form
    380,037.60/570,142.80 = 222,184.80/x
  3. Step 3: Cross multiply
    380,037.60x = 570,142.80 × 222,184.80
  4. Step 4: Simplify right side
    380,037.60x = 126,677,063,989.44
  5. Step 5: Solve for x
    x = 126,677,063,989.44/380,037.60
  6. Step 6: Final answer
    x = 333,327.71

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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.