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Finding the Fourth Proportional to 445,271.40, 667,907.10 and 303,553.80

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Solution

The fourth proportional to 445,271.40, 667,907.10 and 303,553.80 is: 455,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,271.40 : 667,907.10 = 303,553.80 : x
  2. Step 2: Convert to fraction form
    445,271.40/667,907.10 = 303,553.80/x
  3. Step 3: Cross multiply
    445,271.40x = 667,907.10 × 303,553.80
  4. Step 4: Simplify right side
    445,271.40x = 202,745,738,251.98
  5. Step 5: Solve for x
    x = 202,745,738,251.98/445,271.40
  6. Step 6: Final answer
    x = 455,330.70

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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.