Finding the Fourth Proportional to 312,172.19, 430,797.62 and 168,932.23
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Solution
The fourth proportional to 312,172.19, 430,797.62 and 168,932.23 is: 233,126.48
Step by Step Solution
- Step 1: Write the proportion equation
312,172.19 : 430,797.62 = 168,932.23 : x - Step 2: Convert to fraction form
312,172.19/430,797.62 = 168,932.23/x - Step 3: Cross multiply
312,172.19x = 430,797.62 × 168,932.23 - Step 4: Simplify right side
312,172.19x = 72,775,602,625.29 - Step 5: Solve for x
x = 72,775,602,625.29/312,172.19 - Step 6: Final answer
x = 233,126.48
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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.