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Finding the Fourth Proportional to 303,968.98, 455,268.18 and 146,315.44

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Solution

The fourth proportional to 303,968.98, 455,268.18 and 146,315.44 is: 219,143.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,968.98 : 455,268.18 = 146,315.44 : x
  2. Step 2: Convert to fraction form
    303,968.98/455,268.18 = 146,315.44/x
  3. Step 3: Cross multiply
    303,968.98x = 455,268.18 × 146,315.44
  4. Step 4: Simplify right side
    303,968.98x = 66,612,764,074.70
  5. Step 5: Solve for x
    x = 66,612,764,074.70/303,968.98
  6. Step 6: Final answer
    x = 219,143.30

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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.