Finding the Fourth Proportional to 221,847.36, 306,149.36 and 121,245.36
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Solution
The fourth proportional to 221,847.36, 306,149.36 and 121,245.36 is: 167,318.60
Step by Step Solution
- Step 1: Write the proportion equation
221,847.36 : 306,149.36 = 121,245.36 : x - Step 2: Convert to fraction form
221,847.36/306,149.36 = 121,245.36/x - Step 3: Cross multiply
221,847.36x = 306,149.36 × 121,245.36 - Step 4: Simplify right side
221,847.36x = 37,119,189,366.97 - Step 5: Solve for x
x = 37,119,189,366.97/221,847.36 - Step 6: Final answer
x = 167,318.60
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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.