Finding the Fourth Proportional to 197,988.21, 273,224.61 and 107,344.08
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Solution
The fourth proportional to 197,988.21, 273,224.61 and 107,344.08 is: 148,135.31
Step by Step Solution
- Step 1: Write the proportion equation
197,988.21 : 273,224.61 = 107,344.08 : x - Step 2: Convert to fraction form
197,988.21/273,224.61 = 107,344.08/x - Step 3: Cross multiply
197,988.21x = 273,224.61 × 107,344.08 - Step 4: Simplify right side
197,988.21x = 29,329,044,393.81 - Step 5: Solve for x
x = 29,329,044,393.81/197,988.21 - Step 6: Final answer
x = 148,135.31
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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.