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Finding the Fourth Proportional to 100,369.53, 150,576.57 and 30,243.78

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Solution

The fourth proportional to 100,369.53, 150,576.57 and 30,243.78 is: 45,372.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,369.53 : 150,576.57 = 30,243.78 : x
  2. Step 2: Convert to fraction form
    100,369.53/150,576.57 = 30,243.78/x
  3. Step 3: Cross multiply
    100,369.53x = 150,576.57 × 30,243.78
  4. Step 4: Simplify right side
    100,369.53x = 4,554,004,656.23
  5. Step 5: Solve for x
    x = 4,554,004,656.23/100,369.53
  6. Step 6: Final answer
    x = 45,372.38

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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.