Finding the Fourth Proportional to 186,845.40, 280,235.70 and 68,455.80
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Solution
The fourth proportional to 186,845.40, 280,235.70 and 68,455.80 is: 102,671.83
Step by Step Solution
- Step 1: Write the proportion equation
186,845.40 : 280,235.70 = 68,455.80 : x - Step 2: Convert to fraction form
186,845.40/280,235.70 = 68,455.80/x - Step 3: Cross multiply
186,845.40x = 280,235.70 × 68,455.80 - Step 4: Simplify right side
186,845.40x = 19,183,759,032.06 - Step 5: Solve for x
x = 19,183,759,032.06/186,845.40 - Step 6: Final answer
x = 102,671.83
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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.