Finding the Fourth Proportional to 202,904.73, 280,098.20 and 121,261.79
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Solution
The fourth proportional to 202,904.73, 280,098.20 and 121,261.79 is: 167,394.85
Step by Step Solution
- Step 1: Write the proportion equation
202,904.73 : 280,098.20 = 121,261.79 : x - Step 2: Convert to fraction form
202,904.73/280,098.20 = 121,261.79/x - Step 3: Cross multiply
202,904.73x = 280,098.20 × 121,261.79 - Step 4: Simplify right side
202,904.73x = 33,965,207,100.98 - Step 5: Solve for x
x = 33,965,207,100.98/202,904.73 - Step 6: Final answer
x = 167,394.85
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1.5x scale
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.