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Finding the Fourth Proportional to 300,900.30, 451,569.15 and 123,534.60

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Solution

The fourth proportional to 300,900.30, 451,569.15 and 123,534.60 is: 185,391.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,900.30 : 451,569.15 = 123,534.60 : x
  2. Step 2: Convert to fraction form
    300,900.30/451,569.15 = 123,534.60/x
  3. Step 3: Cross multiply
    300,900.30x = 451,569.15 × 123,534.60
  4. Step 4: Simplify right side
    300,900.30x = 55,784,414,317.59
  5. Step 5: Solve for x
    x = 55,784,414,317.59/300,900.30
  6. Step 6: Final answer
    x = 185,391.69

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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.