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Finding the Fourth Proportional to 300,123.96, 450,185.94 and 122,630.80

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Solution

The fourth proportional to 300,123.96, 450,185.94 and 122,630.80 is: 183,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,123.96 : 450,185.94 = 122,630.80 : x
  2. Step 2: Convert to fraction form
    300,123.96/450,185.94 = 122,630.80/x
  3. Step 3: Cross multiply
    300,123.96x = 450,185.94 × 122,630.80
  4. Step 4: Simplify right side
    300,123.96x = 55,206,661,970.95
  5. Step 5: Solve for x
    x = 55,206,661,970.95/300,123.96
  6. Step 6: Final answer
    x = 183,946.20

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1.5x scale

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.