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Finding the Fourth Proportional to 300,142.40, 450,047.36 and 122,773.96

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Solution

The fourth proportional to 300,142.40, 450,047.36 and 122,773.96 is: 184,092.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,142.40 : 450,047.36 = 122,773.96 : x
  2. Step 2: Convert to fraction form
    300,142.40/450,047.36 = 122,773.96/x
  3. Step 3: Cross multiply
    300,142.40x = 450,047.36 × 122,773.96
  4. Step 4: Simplify right side
    300,142.40x = 55,254,096,574.75
  5. Step 5: Solve for x
    x = 55,254,096,574.75/300,142.40
  6. Step 6: Final answer
    x = 184,092.94

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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.