Finding the Fourth Proportional to 312,003.36, 430,564.14 and 168,762.96
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Solution
The fourth proportional to 312,003.36, 430,564.14 and 168,762.96 is: 232,892.62
Step by Step Solution
- Step 1: Write the proportion equation
312,003.36 : 430,564.14 = 168,762.96 : x - Step 2: Convert to fraction form
312,003.36/430,564.14 = 168,762.96/x - Step 3: Cross multiply
312,003.36x = 430,564.14 × 168,762.96 - Step 4: Simplify right side
312,003.36x = 72,663,278,736.25 - Step 5: Solve for x
x = 72,663,278,736.25/312,003.36 - Step 6: Final answer
x = 232,892.62
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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.