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Finding the Fourth Proportional to 371,554.25, 512,747.48 and 201,788.37

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Solution

The fourth proportional to 371,554.25, 512,747.48 and 201,788.37 is: 278,469.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,554.25 : 512,747.48 = 201,788.37 : x
  2. Step 2: Convert to fraction form
    371,554.25/512,747.48 = 201,788.37/x
  3. Step 3: Cross multiply
    371,554.25x = 512,747.48 × 201,788.37
  4. Step 4: Simplify right side
    371,554.25x = 103,466,478,715.28
  5. Step 5: Solve for x
    x = 103,466,478,715.28/371,554.25
  6. Step 6: Final answer
    x = 278,469.38

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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.