Finding the Fourth Proportional to 209,536.07, 289,127.61 and 117,660.09
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Solution
The fourth proportional to 209,536.07, 289,127.61 and 117,660.09 is: 162,352.87
Step by Step Solution
- Step 1: Write the proportion equation
209,536.07 : 289,127.61 = 117,660.09 : x - Step 2: Convert to fraction form
209,536.07/289,127.61 = 117,660.09/x - Step 3: Cross multiply
209,536.07x = 289,127.61 × 117,660.09 - Step 4: Simplify right side
209,536.07x = 34,018,781,698.31 - Step 5: Solve for x
x = 34,018,781,698.31/209,536.07 - Step 6: Final answer
x = 162,352.87
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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.