Finding the Fourth Proportional to 311,562.36, 429,956.19 and 168,322.14
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Solution
The fourth proportional to 311,562.36, 429,956.19 and 168,322.14 is: 232,284.63
Step by Step Solution
- Step 1: Write the proportion equation
311,562.36 : 429,956.19 = 168,322.14 : x - Step 2: Convert to fraction form
311,562.36/429,956.19 = 168,322.14/x - Step 3: Cross multiply
311,562.36x = 429,956.19 × 168,322.14 - Step 4: Simplify right side
311,562.36x = 72,371,146,007.05 - Step 5: Solve for x
x = 72,371,146,007.05/311,562.36 - Step 6: Final answer
x = 232,284.63
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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.