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Finding the Fourth Proportional to 371,091.78, 512,107.62 and 201,325.89

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Solution

The fourth proportional to 371,091.78, 512,107.62 and 201,325.89 is: 277,830.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,091.78 : 512,107.62 = 201,325.89 : x
  2. Step 2: Convert to fraction form
    371,091.78/512,107.62 = 201,325.89/x
  3. Step 3: Cross multiply
    371,091.78x = 512,107.62 × 201,325.89
  4. Step 4: Simplify right side
    371,091.78x = 103,100,522,372.28
  5. Step 5: Solve for x
    x = 103,100,522,372.28/371,091.78
  6. Step 6: Final answer
    x = 277,830.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.