Finding the Fourth Proportional to 235,961.40, 353,942.10 and 161,311.80
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Solution
The fourth proportional to 235,961.40, 353,942.10 and 161,311.80 is: 241,967.70
Step by Step Solution
- Step 1: Write the proportion equation
235,961.40 : 353,942.10 = 161,311.80 : x - Step 2: Convert to fraction form
235,961.40/353,942.10 = 161,311.80/x - Step 3: Cross multiply
235,961.40x = 353,942.10 × 161,311.80 - Step 4: Simplify right side
235,961.40x = 57,095,037,246.78 - Step 5: Solve for x
x = 57,095,037,246.78/235,961.40 - Step 6: Final answer
x = 241,967.70
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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.