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Finding the Fourth Proportional to 227,906.01, 341,918.42 and 128,139.93

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Solution

The fourth proportional to 227,906.01, 341,918.42 and 128,139.93 is: 192,243.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,906.01 : 341,918.42 = 128,139.93 : x
  2. Step 2: Convert to fraction form
    227,906.01/341,918.42 = 128,139.93/x
  3. Step 3: Cross multiply
    227,906.01x = 341,918.42 × 128,139.93
  4. Step 4: Simplify right side
    227,906.01x = 43,813,401,763.81
  5. Step 5: Solve for x
    x = 43,813,401,763.81/227,906.01
  6. Step 6: Final answer
    x = 192,243.29

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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.