Finding the Fourth Proportional to 207,694.52, 286,624.38 and 115,815.92
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Solution
The fourth proportional to 207,694.52, 286,624.38 and 115,815.92 is: 159,829.28
Step by Step Solution
- Step 1: Write the proportion equation
207,694.52 : 286,624.38 = 115,815.92 : x - Step 2: Convert to fraction form
207,694.52/286,624.38 = 115,815.92/x - Step 3: Cross multiply
207,694.52x = 286,624.38 × 115,815.92 - Step 4: Simplify right side
207,694.52x = 33,195,666,264.13 - Step 5: Solve for x
x = 33,195,666,264.13/207,694.52 - Step 6: Final answer
x = 159,829.28
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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.