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Finding the Fourth Proportional to 300,134.46, 450,202.44 and 122,641.43

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Solution

The fourth proportional to 300,134.46, 450,202.44 and 122,641.43 is: 183,962.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,134.46 : 450,202.44 = 122,641.43 : x
  2. Step 2: Convert to fraction form
    300,134.46/450,202.44 = 122,641.43/x
  3. Step 3: Cross multiply
    300,134.46x = 450,202.44 × 122,641.43
  4. Step 4: Simplify right side
    300,134.46x = 55,213,472,156.60
  5. Step 5: Solve for x
    x = 55,213,472,156.60/300,134.46
  6. Step 6: Final answer
    x = 183,962.46

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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.