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Finding the Fourth Proportional to 300,134.77, 450,202.92 and 122,641.75

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Solution

The fourth proportional to 300,134.77, 450,202.92 and 122,641.75 is: 183,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,134.77 : 450,202.92 = 122,641.75 : x
  2. Step 2: Convert to fraction form
    300,134.77/450,202.92 = 122,641.75/x
  3. Step 3: Cross multiply
    300,134.77x = 450,202.92 × 122,641.75
  4. Step 4: Simplify right side
    300,134.77x = 55,213,671,099.69
  5. Step 5: Solve for x
    x = 55,213,671,099.69/300,134.77
  6. Step 6: Final answer
    x = 183,962.93

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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.