Finding the Fourth Proportional to 189,324.93, 261,221.81 and 115,718.73
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Solution
The fourth proportional to 189,324.93, 261,221.81 and 115,718.73 is: 159,663.37
Step by Step Solution
- Step 1: Write the proportion equation
189,324.93 : 261,221.81 = 115,718.73 : x - Step 2: Convert to fraction form
189,324.93/261,221.81 = 115,718.73/x - Step 3: Cross multiply
189,324.93x = 261,221.81 × 115,718.73 - Step 4: Simplify right side
189,324.93x = 30,228,255,522.91 - Step 5: Solve for x
x = 30,228,255,522.91/189,324.93 - Step 6: Final answer
x = 159,663.37
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1.5x scale
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.