Finding the Fourth Proportional to 197,633.11, 272,733.63 and 106,989.01
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Solution
The fourth proportional to 197,633.11, 272,733.63 and 106,989.01 is: 147,644.80
Step by Step Solution
- Step 1: Write the proportion equation
197,633.11 : 272,733.63 = 106,989.01 : x - Step 2: Convert to fraction form
197,633.11/272,733.63 = 106,989.01/x - Step 3: Cross multiply
197,633.11x = 272,733.63 × 106,989.01 - Step 4: Simplify right side
197,633.11x = 29,179,501,067.41 - Step 5: Solve for x
x = 29,179,501,067.41/197,633.11 - Step 6: Final answer
x = 147,644.80
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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.