Finding the Fourth Proportional to 223,928.15, 309,414.13 and 178,976.99
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Solution
The fourth proportional to 223,928.15, 309,414.13 and 178,976.99 is: 247,302.59
Step by Step Solution
- Step 1: Write the proportion equation
223,928.15 : 309,414.13 = 178,976.99 : x - Step 2: Convert to fraction form
223,928.15/309,414.13 = 178,976.99/x - Step 3: Cross multiply
223,928.15x = 309,414.13 × 178,976.99 - Step 4: Simplify right side
223,928.15x = 55,378,009,976.96 - Step 5: Solve for x
x = 55,378,009,976.96/223,928.15 - Step 6: Final answer
x = 247,302.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.