Finding the Fourth Proportional to 197,657.19, 272,656.26 and 117,006.12
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Solution
The fourth proportional to 197,657.19, 272,656.26 and 117,006.12 is: 161,402.94
Step by Step Solution
- Step 1: Write the proportion equation
197,657.19 : 272,656.26 = 117,006.12 : x - Step 2: Convert to fraction form
197,657.19/272,656.26 = 117,006.12/x - Step 3: Cross multiply
197,657.19x = 272,656.26 × 117,006.12 - Step 4: Simplify right side
197,657.19x = 31,902,451,076.31 - Step 5: Solve for x
x = 31,902,451,076.31/197,657.19 - Step 6: Final answer
x = 161,402.94
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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.