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Finding the Fourth Proportional to 303,540.60, 455,310.90 and 282,804.60

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Solution

The fourth proportional to 303,540.60, 455,310.90 and 282,804.60 is: 424,206.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,540.60 : 455,310.90 = 282,804.60 : x
  2. Step 2: Convert to fraction form
    303,540.60/455,310.90 = 282,804.60/x
  3. Step 3: Cross multiply
    303,540.60x = 455,310.90 × 282,804.60
  4. Step 4: Simplify right side
    303,540.60x = 128,764,016,950.14
  5. Step 5: Solve for x
    x = 128,764,016,950.14/303,540.60
  6. Step 6: Final answer
    x = 424,206.90

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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.