Finding the Fourth Proportional to 202,466.70, 279,391.78 and 121,920.30
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Solution
The fourth proportional to 202,466.70, 279,391.78 and 121,920.30 is: 168,242.63
Step by Step Solution
- Step 1: Write the proportion equation
202,466.70 : 279,391.78 = 121,920.30 : x - Step 2: Convert to fraction form
202,466.70/279,391.78 = 121,920.30/x - Step 3: Cross multiply
202,466.70x = 279,391.78 × 121,920.30 - Step 4: Simplify right side
202,466.70x = 34,063,529,635.13 - Step 5: Solve for x
x = 34,063,529,635.13/202,466.70 - Step 6: Final answer
x = 168,242.63
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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.