Finding the Fourth Proportional to 204,020.05, 306,130.65 and 91,779.70
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Solution
The fourth proportional to 204,020.05, 306,130.65 and 91,779.70 is: 137,714.79
Step by Step Solution
- Step 1: Write the proportion equation
204,020.05 : 306,130.65 = 91,779.70 : x - Step 2: Convert to fraction form
204,020.05/306,130.65 = 91,779.70/x - Step 3: Cross multiply
204,020.05x = 306,130.65 × 91,779.70 - Step 4: Simplify right side
204,020.05x = 28,096,579,217.81 - Step 5: Solve for x
x = 28,096,579,217.81/204,020.05 - Step 6: Final answer
x = 137,714.79
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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.