Finding the Fourth Proportional to 197,381.88, 272,365.74 and 116,812.80
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Solution
The fourth proportional to 197,381.88, 272,365.74 and 116,812.80 is: 161,189.09
Step by Step Solution
- Step 1: Write the proportion equation
197,381.88 : 272,365.74 = 116,812.80 : x - Step 2: Convert to fraction form
197,381.88/272,365.74 = 116,812.80/x - Step 3: Cross multiply
197,381.88x = 272,365.74 × 116,812.80 - Step 4: Simplify right side
197,381.88x = 31,815,804,713.47 - Step 5: Solve for x
x = 31,815,804,713.47/197,381.88 - Step 6: Final answer
x = 161,189.09
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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.