Finding the Fourth Proportional to 221,446.72, 305,596.50 and 136,613.08
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Solution
The fourth proportional to 221,446.72, 305,596.50 and 136,613.08 is: 188,526.07
Step by Step Solution
- Step 1: Write the proportion equation
221,446.72 : 305,596.50 = 136,613.08 : x - Step 2: Convert to fraction form
221,446.72/305,596.50 = 136,613.08/x - Step 3: Cross multiply
221,446.72x = 305,596.50 × 136,613.08 - Step 4: Simplify right side
221,446.72x = 41,748,479,102.22 - Step 5: Solve for x
x = 41,748,479,102.22/221,446.72 - Step 6: Final answer
x = 188,526.07
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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.