Finding the Fourth Proportional to 223,738.94, 308,773.52 and 128,259.99
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Solution
The fourth proportional to 223,738.94, 308,773.52 and 128,259.99 is: 177,006.69
Step by Step Solution
- Step 1: Write the proportion equation
223,738.94 : 308,773.52 = 128,259.99 : x - Step 2: Convert to fraction form
223,738.94/308,773.52 = 128,259.99/x - Step 3: Cross multiply
223,738.94x = 308,773.52 × 128,259.99 - Step 4: Simplify right side
223,738.94x = 39,603,288,587.46 - Step 5: Solve for x
x = 39,603,288,587.46/223,738.94 - Step 6: Final answer
x = 177,006.69
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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.