Finding the Fourth Proportional to 197,990.24, 272,869.52 and 144,190.08
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Solution
The fourth proportional to 197,990.24, 272,869.52 and 144,190.08 is: 198,722.31
Step by Step Solution
- Step 1: Write the proportion equation
197,990.24 : 272,869.52 = 144,190.08 : x - Step 2: Convert to fraction form
197,990.24/272,869.52 = 144,190.08/x - Step 3: Cross multiply
197,990.24x = 272,869.52 × 144,190.08 - Step 4: Simplify right side
197,990.24x = 39,345,077,918.36 - Step 5: Solve for x
x = 39,345,077,918.36/197,990.24 - Step 6: Final answer
x = 198,722.31
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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.