Finding the Fourth Proportional to 311,517.69, 429,894.12 and 168,277.68
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Solution
The fourth proportional to 311,517.69, 429,894.12 and 168,277.68 is: 232,223.04
Step by Step Solution
- Step 1: Write the proportion equation
311,517.69 : 429,894.12 = 168,277.68 : x - Step 2: Convert to fraction form
311,517.69/429,894.12 = 168,277.68/x - Step 3: Cross multiply
311,517.69x = 429,894.12 × 168,277.68 - Step 4: Simplify right side
311,517.69x = 72,341,585,159.24 - Step 5: Solve for x
x = 72,341,585,159.24/311,517.69 - Step 6: Final answer
x = 232,223.04
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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.