Finding the Fourth Proportional to 240,619.42, 361,583.42 and 128,378.94
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Solution
The fourth proportional to 240,619.42, 361,583.42 and 128,378.94 is: 192,917.50
Step by Step Solution
- Step 1: Write the proportion equation
240,619.42 : 361,583.42 = 128,378.94 : x - Step 2: Convert to fraction form
240,619.42/361,583.42 = 128,378.94/x - Step 3: Cross multiply
240,619.42x = 361,583.42 × 128,378.94 - Step 4: Simplify right side
240,619.42x = 46,419,696,181.17 - Step 5: Solve for x
x = 46,419,696,181.17/240,619.42 - Step 6: Final answer
x = 192,917.50
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1.5x scale
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.