Finding the Fourth Proportional to 386,727.92, 533,748.74 and 225,583.08
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Solution
The fourth proportional to 386,727.92, 533,748.74 and 225,583.08 is: 311,342.10
Step by Step Solution
- Step 1: Write the proportion equation
386,727.92 : 533,748.74 = 225,583.08 : x - Step 2: Convert to fraction form
386,727.92/533,748.74 = 225,583.08/x - Step 3: Cross multiply
386,727.92x = 533,748.74 × 225,583.08 - Step 4: Simplify right side
386,727.92x = 120,404,682,854.75 - Step 5: Solve for x
x = 120,404,682,854.75/386,727.92 - Step 6: Final answer
x = 311,342.10
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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.