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Finding the Fourth Proportional to 332,999.45, 499,455.89 and 133,321.79

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Solution

The fourth proportional to 332,999.45, 499,455.89 and 133,321.79 is: 199,965.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,999.45 : 499,455.89 = 133,321.79 : x
  2. Step 2: Convert to fraction form
    332,999.45/499,455.89 = 133,321.79/x
  3. Step 3: Cross multiply
    332,999.45x = 499,455.89 × 133,321.79
  4. Step 4: Simplify right side
    332,999.45x = 66,588,353,862.87
  5. Step 5: Solve for x
    x = 66,588,353,862.87/332,999.45
  6. Step 6: Final answer
    x = 199,965.36

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1.5x scale

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.