Finding the Fourth Proportional to 197,893.68, 272,927.79 and 129,857.73
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Solution
The fourth proportional to 197,893.68, 272,927.79 and 129,857.73 is: 179,095.07
Step by Step Solution
- Step 1: Write the proportion equation
197,893.68 : 272,927.79 = 129,857.73 : x - Step 2: Convert to fraction form
197,893.68/272,927.79 = 129,857.73/x - Step 3: Cross multiply
197,893.68x = 272,927.79 × 129,857.73 - Step 4: Simplify right side
197,893.68x = 35,441,783,263.32 - Step 5: Solve for x
x = 35,441,783,263.32/197,893.68 - Step 6: Final answer
x = 179,095.07
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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.