Finding the Fourth Proportional to 202,063.24, 278,814.18 and 121,471.48
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Solution
The fourth proportional to 202,063.24, 278,814.18 and 121,471.48 is: 167,610.75
Step by Step Solution
- Step 1: Write the proportion equation
202,063.24 : 278,814.18 = 121,471.48 : x - Step 2: Convert to fraction form
202,063.24/278,814.18 = 121,471.48/x - Step 3: Cross multiply
202,063.24x = 278,814.18 × 121,471.48 - Step 4: Simplify right side
202,063.24x = 33,867,971,089.59 - Step 5: Solve for x
x = 33,867,971,089.59/202,063.24 - Step 6: Final answer
x = 167,610.75
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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.