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Finding the Fourth Proportional to 443,350.80, 665,026.20 and 303,382.80

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Solution

The fourth proportional to 443,350.80, 665,026.20 and 303,382.80 is: 455,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,350.80 : 665,026.20 = 303,382.80 : x
  2. Step 2: Convert to fraction form
    443,350.80/665,026.20 = 303,382.80/x
  3. Step 3: Cross multiply
    443,350.80x = 665,026.20 × 303,382.80
  4. Step 4: Simplify right side
    443,350.80x = 201,757,510,629.36
  5. Step 5: Solve for x
    x = 201,757,510,629.36/443,350.80
  6. Step 6: Final answer
    x = 455,074.20

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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.