Finding the Fourth Proportional to 202,176.96, 278,915.40 and 121,557.84
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Solution
The fourth proportional to 202,176.96, 278,915.40 and 121,557.84 is: 167,696.43
Step by Step Solution
- Step 1: Write the proportion equation
202,176.96 : 278,915.40 = 121,557.84 : x - Step 2: Convert to fraction form
202,176.96/278,915.40 = 121,557.84/x - Step 3: Cross multiply
202,176.96x = 278,915.40 × 121,557.84 - Step 4: Simplify right side
202,176.96x = 33,904,353,566.74 - Step 5: Solve for x
x = 33,904,353,566.74/202,176.96 - Step 6: Final answer
x = 167,696.43
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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.