Finding the Fourth Proportional to 311,441.04, 429,788.48 and 168,201.09
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Solution
The fourth proportional to 311,441.04, 429,788.48 and 168,201.09 is: 232,117.42
Step by Step Solution
- Step 1: Write the proportion equation
311,441.04 : 429,788.48 = 168,201.09 : x - Step 2: Convert to fraction form
311,441.04/429,788.48 = 168,201.09/x - Step 3: Cross multiply
311,441.04x = 429,788.48 × 168,201.09 - Step 4: Simplify right side
311,441.04x = 72,290,889,964.44 - Step 5: Solve for x
x = 72,290,889,964.44/311,441.04 - Step 6: Final answer
x = 232,117.42
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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.