Finding the Fourth Proportional to 311,958.80, 430,503.14 and 168,718.84
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Solution
The fourth proportional to 311,958.80, 430,503.14 and 168,718.84 is: 232,832.00
Step by Step Solution
- Step 1: Write the proportion equation
311,958.80 : 430,503.14 = 168,718.84 : x - Step 2: Convert to fraction form
311,958.80/430,503.14 = 168,718.84/x - Step 3: Cross multiply
311,958.80x = 430,503.14 × 168,718.84 - Step 4: Simplify right side
311,958.80x = 72,633,990,397.16 - Step 5: Solve for x
x = 72,633,990,397.16/311,958.80 - Step 6: Final answer
x = 232,832.00
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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.