Finding the Fourth Proportional to 299,709.96, 449,631.90 and 112,723.08
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Solution
The fourth proportional to 299,709.96, 449,631.90 and 112,723.08 is: 169,109.80
Step by Step Solution
- Step 1: Write the proportion equation
299,709.96 : 449,631.90 = 112,723.08 : x - Step 2: Convert to fraction form
299,709.96/449,631.90 = 112,723.08/x - Step 3: Cross multiply
299,709.96x = 449,631.90 × 112,723.08 - Step 4: Simplify right side
299,709.96x = 50,683,892,634.25 - Step 5: Solve for x
x = 50,683,892,634.25/299,709.96 - Step 6: Final answer
x = 169,109.80
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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.