Finding the Fourth Proportional to 289,169.08, 399,078.30 and 161,842.84
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Solution
The fourth proportional to 289,169.08, 399,078.30 and 161,842.84 is: 223,357.09
Step by Step Solution
- Step 1: Write the proportion equation
289,169.08 : 399,078.30 = 161,842.84 : x - Step 2: Convert to fraction form
289,169.08/399,078.30 = 161,842.84/x - Step 3: Cross multiply
289,169.08x = 399,078.30 × 161,842.84 - Step 4: Simplify right side
289,169.08x = 64,587,965,454.37 - Step 5: Solve for x
x = 64,587,965,454.37/289,169.08 - Step 6: Final answer
x = 223,357.09
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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.