Finding the Fourth Proportional to 207,858.18, 286,844.18 and 112,365.05
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Solution
The fourth proportional to 207,858.18, 286,844.18 and 112,365.05 is: 155,063.71
Step by Step Solution
- Step 1: Write the proportion equation
207,858.18 : 286,844.18 = 112,365.05 : x - Step 2: Convert to fraction form
207,858.18/286,844.18 = 112,365.05/x - Step 3: Cross multiply
207,858.18x = 286,844.18 × 112,365.05 - Step 4: Simplify right side
207,858.18x = 32,231,260,783.19 - Step 5: Solve for x
x = 32,231,260,783.19/207,858.18 - Step 6: Final answer
x = 155,063.71
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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.