Finding the Fourth Proportional to 305,110.84, 421,051.80 and 170,974.84
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Solution
The fourth proportional to 305,110.84, 421,051.80 and 170,974.84 is: 235,944.63
Step by Step Solution
- Step 1: Write the proportion equation
305,110.84 : 421,051.80 = 170,974.84 : x - Step 2: Convert to fraction form
305,110.84/421,051.80 = 170,974.84/x - Step 3: Cross multiply
305,110.84x = 421,051.80 × 170,974.84 - Step 4: Simplify right side
305,110.84x = 71,989,264,136.71 - Step 5: Solve for x
x = 71,989,264,136.71/305,110.84 - Step 6: Final answer
x = 235,944.63
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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.