Finding the Fourth Proportional to 201,919.42, 302,879.13 and 68,731.12
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Solution
The fourth proportional to 201,919.42, 302,879.13 and 68,731.12 is: 103,096.68
Step by Step Solution
- Step 1: Write the proportion equation
201,919.42 : 302,879.13 = 68,731.12 : x - Step 2: Convert to fraction form
201,919.42/302,879.13 = 68,731.12/x - Step 3: Cross multiply
201,919.42x = 302,879.13 × 68,731.12 - Step 4: Simplify right side
201,919.42x = 20,817,221,829.53 - Step 5: Solve for x
x = 20,817,221,829.53/201,919.42 - Step 6: Final answer
x = 103,096.68
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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.