Finding the Fourth Proportional to 197,141.91, 272,146.66 and 115,458.80
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Solution
The fourth proportional to 197,141.91, 272,146.66 and 115,458.80 is: 159,386.33
Step by Step Solution
- Step 1: Write the proportion equation
197,141.91 : 272,146.66 = 115,458.80 : x - Step 2: Convert to fraction form
197,141.91/272,146.66 = 115,458.80/x - Step 3: Cross multiply
197,141.91x = 272,146.66 × 115,458.80 - Step 4: Simplify right side
197,141.91x = 31,421,726,210.31 - Step 5: Solve for x
x = 31,421,726,210.31/197,141.91 - Step 6: Final answer
x = 159,386.33
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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.