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Finding the Fourth Proportional to 351,579.98, 485,177.99 and 198,667.67

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Solution

The fourth proportional to 351,579.98, 485,177.99 and 198,667.67 is: 274,160.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,579.98 : 485,177.99 = 198,667.67 : x
  2. Step 2: Convert to fraction form
    351,579.98/485,177.99 = 198,667.67/x
  3. Step 3: Cross multiply
    351,579.98x = 485,177.99 × 198,667.67
  4. Step 4: Simplify right side
    351,579.98x = 96,389,180,808.58
  5. Step 5: Solve for x
    x = 96,389,180,808.58/351,579.98
  6. Step 6: Final answer
    x = 274,160.04

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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.