Finding the Third Proportional to 138,439.13 and 181,779.19
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Solution
The third proportional to 138,439.13 and 181,779.19 is: 238,687.39
Step by Step Solution
- Step 1: Write the proportion equation
138,439.13 : 181,779.19 = 181,779.19 : x - Step 2: Convert to fraction form
138,439.13/181,779.19 = 181,779.19/x - Step 3: Cross multiply
138,439.13x = 181,779.19 × 181,779.19 - Step 4: Simplify right side
138,439.13x = 33,043,673,008.16 - Step 5: Solve for x
x = 33,043,673,008.16/138,439.13 - Step 6: Final answer
x = 238,687.39
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These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.