Finding the Fourth Proportional to 311,534.10, 429,916.52 and 168,293.70
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Solution
The fourth proportional to 311,534.10, 429,916.52 and 168,293.70 is: 232,245.02
Step by Step Solution
- Step 1: Write the proportion equation
311,534.10 : 429,916.52 = 168,293.70 : x - Step 2: Convert to fraction form
311,534.10/429,916.52 = 168,293.70/x - Step 3: Cross multiply
311,534.10x = 429,916.52 × 168,293.70 - Step 4: Simplify right side
311,534.10x = 72,352,241,841.92 - Step 5: Solve for x
x = 72,352,241,841.92/311,534.10 - Step 6: Final answer
x = 232,245.02
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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.