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Finding the Fourth Proportional to 300,270.55, 450,406.11 and 122,777.56

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Solution

The fourth proportional to 300,270.55, 450,406.11 and 122,777.56 is: 184,166.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,270.55 : 450,406.11 = 122,777.56 : x
  2. Step 2: Convert to fraction form
    300,270.55/450,406.11 = 122,777.56/x
  3. Step 3: Cross multiply
    300,270.55x = 450,406.11 × 122,777.56
  4. Step 4: Simplify right side
    300,270.55x = 55,299,763,194.89
  5. Step 5: Solve for x
    x = 55,299,763,194.89/300,270.55
  6. Step 6: Final answer
    x = 184,166.46

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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.