Finding the Fourth Proportional to 197,988.75, 273,347.96 and 137,538.99
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Solution
The fourth proportional to 197,988.75, 273,347.96 and 137,538.99 is: 189,889.59
Step by Step Solution
- Step 1: Write the proportion equation
197,988.75 : 273,347.96 = 137,538.99 : x - Step 2: Convert to fraction form
197,988.75/273,347.96 = 137,538.99/x - Step 3: Cross multiply
197,988.75x = 273,347.96 × 137,538.99 - Step 4: Simplify right side
197,988.75x = 37,596,001,649.27 - Step 5: Solve for x
x = 37,596,001,649.27/197,988.75 - Step 6: Final answer
x = 189,889.59
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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.