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Finding the Fourth Proportional to 303,656.70, 455,485.05 and 204,123.90

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Solution

The fourth proportional to 303,656.70, 455,485.05 and 204,123.90 is: 306,185.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,656.70 : 455,485.05 = 204,123.90 : x
  2. Step 2: Convert to fraction form
    303,656.70/455,485.05 = 204,123.90/x
  3. Step 3: Cross multiply
    303,656.70x = 455,485.05 × 204,123.90
  4. Step 4: Simplify right side
    303,656.70x = 92,975,384,797.70
  5. Step 5: Solve for x
    x = 92,975,384,797.70/303,656.70
  6. Step 6: Final answer
    x = 306,185.85

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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.