Finding the Fourth Proportional to 305,336.74, 421,343.76 and 169,365.28
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Solution
The fourth proportional to 305,336.74, 421,343.76 and 169,365.28 is: 233,712.47
Step by Step Solution
- Step 1: Write the proportion equation
305,336.74 : 421,343.76 = 169,365.28 : x - Step 2: Convert to fraction form
305,336.74/421,343.76 = 169,365.28/x - Step 3: Cross multiply
305,336.74x = 421,343.76 × 169,365.28 - Step 4: Simplify right side
305,336.74x = 71,361,003,888.65 - Step 5: Solve for x
x = 71,361,003,888.65/305,336.74 - Step 6: Final answer
x = 233,712.47
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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.