Finding the Fourth Proportional to 210,729.97, 290,812.42 and 120,084.00
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Solution
The fourth proportional to 210,729.97, 290,812.42 and 120,084.00 is: 165,718.80
Step by Step Solution
- Step 1: Write the proportion equation
210,729.97 : 290,812.42 = 120,084.00 : x - Step 2: Convert to fraction form
210,729.97/290,812.42 = 120,084.00/x - Step 3: Cross multiply
210,729.97x = 290,812.42 × 120,084.00 - Step 4: Simplify right side
210,729.97x = 34,921,916,889.01 - Step 5: Solve for x
x = 34,921,916,889.01/210,729.97 - Step 6: Final answer
x = 165,718.80
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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.