Finding the Fourth Proportional to 212,943.18, 293,861.01 and 122,304.99
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Solution
The fourth proportional to 212,943.18, 293,861.01 and 122,304.99 is: 168,780.55
Step by Step Solution
- Step 1: Write the proportion equation
212,943.18 : 293,861.01 = 122,304.99 : x - Step 2: Convert to fraction form
212,943.18/293,861.01 = 122,304.99/x - Step 3: Cross multiply
212,943.18x = 293,861.01 × 122,304.99 - Step 4: Simplify right side
212,943.18x = 35,940,667,889.44 - Step 5: Solve for x
x = 35,940,667,889.44/212,943.18 - Step 6: Final answer
x = 168,780.55
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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.