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Finding the Fourth Proportional to 300,123.08, 450,184.62 and 122,629.93

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Solution

The fourth proportional to 300,123.08, 450,184.62 and 122,629.93 is: 183,944.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,123.08 : 450,184.62 = 122,629.93 : x
  2. Step 2: Convert to fraction form
    300,123.08/450,184.62 = 122,629.93/x
  3. Step 3: Cross multiply
    300,123.08x = 450,184.62 × 122,629.93
  4. Step 4: Simplify right side
    300,123.08x = 55,206,107,772.08
  5. Step 5: Solve for x
    x = 55,206,107,772.08/300,123.08
  6. Step 6: Final answer
    x = 183,944.89

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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.