Finding the Fourth Proportional to 221,827.41, 306,234.68 and 136,993.68
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Solution
The fourth proportional to 221,827.41, 306,234.68 and 136,993.68 is: 189,120.97
Step by Step Solution
- Step 1: Write the proportion equation
221,827.41 : 306,234.68 = 136,993.68 : x - Step 2: Convert to fraction form
221,827.41/306,234.68 = 136,993.68/x - Step 3: Cross multiply
221,827.41x = 306,234.68 × 136,993.68 - Step 4: Simplify right side
221,827.41x = 41,952,215,071.85 - Step 5: Solve for x
x = 41,952,215,071.85/221,827.41 - Step 6: Final answer
x = 189,120.97
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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.