Finding the Fourth Proportional to 197,803.80, 272,968.94 and 107,162.07
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Solution
The fourth proportional to 197,803.80, 272,968.94 and 107,162.07 is: 147,883.49
Step by Step Solution
- Step 1: Write the proportion equation
197,803.80 : 272,968.94 = 107,162.07 : x - Step 2: Convert to fraction form
197,803.80/272,968.94 = 107,162.07/x - Step 3: Cross multiply
197,803.80x = 272,968.94 × 107,162.07 - Step 4: Simplify right side
197,803.80x = 29,251,916,120.30 - Step 5: Solve for x
x = 29,251,916,120.30/197,803.80 - Step 6: Final answer
x = 147,883.49
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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.