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Finding the Fourth Proportional to 351,579.36, 485,266.32 and 200,763.84

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Solution

The fourth proportional to 351,579.36, 485,266.32 and 200,763.84 is: 277,103.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,579.36 : 485,266.32 = 200,763.84 : x
  2. Step 2: Convert to fraction form
    351,579.36/485,266.32 = 200,763.84/x
  3. Step 3: Cross multiply
    351,579.36x = 485,266.32 × 200,763.84
  4. Step 4: Simplify right side
    351,579.36x = 97,423,929,825.87
  5. Step 5: Solve for x
    x = 97,423,929,825.87/351,579.36
  6. Step 6: Final answer
    x = 277,103.67

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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.