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Finding the Fourth Proportional to 303,517.20, 455,551.20 and 153,861.60

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Solution

The fourth proportional to 303,517.20, 455,551.20 and 153,861.60 is: 230,932.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,517.20 : 455,551.20 = 153,861.60 : x
  2. Step 2: Convert to fraction form
    303,517.20/455,551.20 = 153,861.60/x
  3. Step 3: Cross multiply
    303,517.20x = 455,551.20 × 153,861.60
  4. Step 4: Simplify right side
    303,517.20x = 70,091,836,513.92
  5. Step 5: Solve for x
    x = 70,091,836,513.92/303,517.20
  6. Step 6: Final answer
    x = 230,932.01

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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.