Finding the Fourth Proportional to 197,389.82, 272,394.56 and 111,348.99
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Solution
The fourth proportional to 197,389.82, 272,394.56 and 111,348.99 is: 153,659.69
Step by Step Solution
- Step 1: Write the proportion equation
197,389.82 : 272,394.56 = 111,348.99 : x - Step 2: Convert to fraction form
197,389.82/272,394.56 = 111,348.99/x - Step 3: Cross multiply
197,389.82x = 272,394.56 × 111,348.99 - Step 4: Simplify right side
197,389.82x = 30,330,859,415.87 - Step 5: Solve for x
x = 30,330,859,415.87/197,389.82 - Step 6: Final answer
x = 153,659.69
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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.