Finding the Fourth Proportional to 221,944.75, 306,284.84 and 121,342.75
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Solution
The fourth proportional to 221,944.75, 306,284.84 and 121,342.75 is: 167,453.59
Step by Step Solution
- Step 1: Write the proportion equation
221,944.75 : 306,284.84 = 121,342.75 : x - Step 2: Convert to fraction form
221,944.75/306,284.84 = 121,342.75/x - Step 3: Cross multiply
221,944.75x = 306,284.84 × 121,342.75 - Step 4: Simplify right side
221,944.75x = 37,165,444,768.91 - Step 5: Solve for x
x = 37,165,444,768.91/221,944.75 - Step 6: Final answer
x = 167,453.59
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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.