Finding the Fourth Proportional to 311,903.36, 430,426.66 and 168,663.42
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Solution
The fourth proportional to 311,903.36, 430,426.66 and 168,663.42 is: 232,755.53
Step by Step Solution
- Step 1: Write the proportion equation
311,903.36 : 430,426.66 = 168,663.42 : x - Step 2: Convert to fraction form
311,903.36/430,426.66 = 168,663.42/x - Step 3: Cross multiply
311,903.36x = 430,426.66 × 168,663.42 - Step 4: Simplify right side
311,903.36x = 72,597,232,534.78 - Step 5: Solve for x
x = 72,597,232,534.78/311,903.36 - Step 6: Final answer
x = 232,755.53
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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.