Finding the Fourth Proportional to 291,193.76, 436,742.04 and 80,852.96
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Solution
The fourth proportional to 291,193.76, 436,742.04 and 80,852.96 is: 121,265.95
Step by Step Solution
- Step 1: Write the proportion equation
291,193.76 : 436,742.04 = 80,852.96 : x - Step 2: Convert to fraction form
291,193.76/436,742.04 = 80,852.96/x - Step 3: Cross multiply
291,193.76x = 436,742.04 × 80,852.96 - Step 4: Simplify right side
291,193.76x = 35,311,886,690.44 - Step 5: Solve for x
x = 35,311,886,690.44/291,193.76 - Step 6: Final answer
x = 121,265.95
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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.