Finding the Fourth Proportional to 311,378.96, 429,623.84 and 190,476.08
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Solution
The fourth proportional to 311,378.96, 429,623.84 and 190,476.08 is: 262,808.59
Step by Step Solution
- Step 1: Write the proportion equation
311,378.96 : 429,623.84 = 190,476.08 : x - Step 2: Convert to fraction form
311,378.96/429,623.84 = 190,476.08/x - Step 3: Cross multiply
311,378.96x = 429,623.84 × 190,476.08 - Step 4: Simplify right side
311,378.96x = 81,833,064,917.75 - Step 5: Solve for x
x = 81,833,064,917.75/311,378.96 - Step 6: Final answer
x = 262,808.59
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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.