Finding the Fourth Proportional to 305,395.58, 421,448.45 and 169,438.44
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Solution
The fourth proportional to 305,395.58, 421,448.45 and 169,438.44 is: 233,826.46
Step by Step Solution
- Step 1: Write the proportion equation
305,395.58 : 421,448.45 = 169,438.44 : x - Step 2: Convert to fraction form
305,395.58/421,448.45 = 169,438.44/x - Step 3: Cross multiply
305,395.58x = 421,448.45 × 169,438.44 - Step 4: Simplify right side
305,395.58x = 71,409,567,061.23 - Step 5: Solve for x
x = 71,409,567,061.23/305,395.58 - Step 6: Final answer
x = 233,826.46
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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.