Finding the Fourth Proportional to 202,587.36, 279,749.88 and 126,236.76
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Solution
The fourth proportional to 202,587.36, 279,749.88 and 126,236.76 is: 174,318.47
Step by Step Solution
- Step 1: Write the proportion equation
202,587.36 : 279,749.88 = 126,236.76 : x - Step 2: Convert to fraction form
202,587.36/279,749.88 = 126,236.76/x - Step 3: Cross multiply
202,587.36x = 279,749.88 × 126,236.76 - Step 4: Simplify right side
202,587.36x = 35,314,718,461.59 - Step 5: Solve for x
x = 35,314,718,461.59/202,587.36 - Step 6: Final answer
x = 174,318.47
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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.