Finding the Fourth Proportional to 285,717.40, 428,031.74 and 177,475.48
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Solution
The fourth proportional to 285,717.40, 428,031.74 and 177,475.48 is: 265,875.09
Step by Step Solution
- Step 1: Write the proportion equation
285,717.40 : 428,031.74 = 177,475.48 : x - Step 2: Convert to fraction form
285,717.40/428,031.74 = 177,475.48/x - Step 3: Cross multiply
285,717.40x = 428,031.74 × 177,475.48 - Step 4: Simplify right side
285,717.40x = 75,965,138,511.74 - Step 5: Solve for x
x = 75,965,138,511.74/285,717.40 - Step 6: Final answer
x = 265,875.09
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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.