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Finding the Fourth Proportional to 443,333.80, 665,000.70 and 303,365.80

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Solution

The fourth proportional to 443,333.80, 665,000.70 and 303,365.80 is: 455,048.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,333.80 : 665,000.70 = 303,365.80 : x
  2. Step 2: Convert to fraction form
    443,333.80/665,000.70 = 303,365.80/x
  3. Step 3: Cross multiply
    443,333.80x = 665,000.70 × 303,365.80
  4. Step 4: Simplify right side
    443,333.80x = 201,738,469,356.06
  5. Step 5: Solve for x
    x = 201,738,469,356.06/443,333.80
  6. Step 6: Final answer
    x = 455,048.70

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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.