Finding the Fourth Proportional to 207,844.92, 311,690.16 and 74,688.84
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Solution
The fourth proportional to 207,844.92, 311,690.16 and 74,688.84 is: 112,005.51
Step by Step Solution
- Step 1: Write the proportion equation
207,844.92 : 311,690.16 = 74,688.84 : x - Step 2: Convert to fraction form
207,844.92/311,690.16 = 74,688.84/x - Step 3: Cross multiply
207,844.92x = 311,690.16 × 74,688.84 - Step 4: Simplify right side
207,844.92x = 23,279,776,489.81 - Step 5: Solve for x
x = 23,279,776,489.81/207,844.92 - Step 6: Final answer
x = 112,005.51
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.