Finding the Fourth Proportional to 311,207.12, 429,648.85 and 293,270.99
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Solution
The fourth proportional to 311,207.12, 429,648.85 and 293,270.99 is: 404,886.44
Step by Step Solution
- Step 1: Write the proportion equation
311,207.12 : 429,648.85 = 293,270.99 : x - Step 2: Convert to fraction form
311,207.12/429,648.85 = 293,270.99/x - Step 3: Cross multiply
311,207.12x = 429,648.85 × 293,270.99 - Step 4: Simplify right side
311,207.12x = 126,003,543,591.86 - Step 5: Solve for x
x = 126,003,543,591.86/311,207.12 - Step 6: Final answer
x = 404,886.44
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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.