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Finding the Fourth Proportional to 300,143.68, 449,891.52 and 195,038.08

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Solution

The fourth proportional to 300,143.68, 449,891.52 and 195,038.08 is: 292,346.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,143.68 : 449,891.52 = 195,038.08 : x
  2. Step 2: Convert to fraction form
    300,143.68/449,891.52 = 195,038.08/x
  3. Step 3: Cross multiply
    300,143.68x = 449,891.52 × 195,038.08
  4. Step 4: Simplify right side
    300,143.68x = 87,745,978,269.08
  5. Step 5: Solve for x
    x = 87,745,978,269.08/300,143.68
  6. Step 6: Final answer
    x = 292,346.58

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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.