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Finding the Fourth Proportional to 332,728.80, 498,437.10 and 199,212.45

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Solution

The fourth proportional to 332,728.80, 498,437.10 and 199,212.45 is: 298,425.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,728.80 : 498,437.10 = 199,212.45 : x
  2. Step 2: Convert to fraction form
    332,728.80/498,437.10 = 199,212.45/x
  3. Step 3: Cross multiply
    332,728.80x = 498,437.10 × 199,212.45
  4. Step 4: Simplify right side
    332,728.80x = 99,294,875,861.90
  5. Step 5: Solve for x
    x = 99,294,875,861.90/332,728.80
  6. Step 6: Final answer
    x = 298,425.85

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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.