Finding the Fourth Proportional to 305,242.71, 421,234.97 and 169,297.44
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Solution
The fourth proportional to 305,242.71, 421,234.97 and 169,297.44 is: 233,630.48
Step by Step Solution
- Step 1: Write the proportion equation
305,242.71 : 421,234.97 = 169,297.44 : x - Step 2: Convert to fraction form
305,242.71/421,234.97 = 169,297.44/x - Step 3: Cross multiply
305,242.71x = 421,234.97 × 169,297.44 - Step 4: Simplify right side
305,242.71x = 71,314,001,212.99 - Step 5: Solve for x
x = 71,314,001,212.99/305,242.71 - Step 6: Final answer
x = 233,630.48
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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.