Finding the Fourth Proportional to 207,724.80, 286,660.35 and 112,231.47
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Solution
The fourth proportional to 207,724.80, 286,660.35 and 112,231.47 is: 154,879.50
Step by Step Solution
- Step 1: Write the proportion equation
207,724.80 : 286,660.35 = 112,231.47 : x - Step 2: Convert to fraction form
207,724.80/286,660.35 = 112,231.47/x - Step 3: Cross multiply
207,724.80x = 286,660.35 × 112,231.47 - Step 4: Simplify right side
207,724.80x = 32,172,312,471.21 - Step 5: Solve for x
x = 32,172,312,471.21/207,724.80 - Step 6: Final answer
x = 154,879.50
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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.