Finding the Fourth Proportional to 210,971.09, 291,082.53 and 120,293.99
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Solution
The fourth proportional to 210,971.09, 291,082.53 and 120,293.99 is: 165,972.88
Step by Step Solution
- Step 1: Write the proportion equation
210,971.09 : 291,082.53 = 120,293.99 : x - Step 2: Convert to fraction form
210,971.09/291,082.53 = 120,293.99/x - Step 3: Cross multiply
210,971.09x = 291,082.53 × 120,293.99 - Step 4: Simplify right side
210,971.09x = 35,015,478,952.99 - Step 5: Solve for x
x = 35,015,478,952.99/210,971.09 - Step 6: Final answer
x = 165,972.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.