Finding the Fourth Proportional to 311,247.84, 466,842.96 and 86,611.68
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Solution
The fourth proportional to 311,247.84, 466,842.96 and 86,611.68 is: 129,909.51
Step by Step Solution
- Step 1: Write the proportion equation
311,247.84 : 466,842.96 = 86,611.68 : x - Step 2: Convert to fraction form
311,247.84/466,842.96 = 86,611.68/x - Step 3: Cross multiply
311,247.84x = 466,842.96 × 86,611.68 - Step 4: Simplify right side
311,247.84x = 40,434,053,061.77 - Step 5: Solve for x
x = 40,434,053,061.77/311,247.84 - Step 6: Final answer
x = 129,909.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.