Finding the Fourth Proportional to 374,435.80, 561,653.70 and 121,715.80
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Solution
The fourth proportional to 374,435.80, 561,653.70 and 121,715.80 is: 182,573.70
Step by Step Solution
- Step 1: Write the proportion equation
374,435.80 : 561,653.70 = 121,715.80 : x - Step 2: Convert to fraction form
374,435.80/561,653.70 = 121,715.80/x - Step 3: Cross multiply
374,435.80x = 561,653.70 × 121,715.80 - Step 4: Simplify right side
374,435.80x = 68,362,129,418.46 - Step 5: Solve for x
x = 68,362,129,418.46/374,435.80 - Step 6: Final answer
x = 182,573.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.