Finding the Fourth Proportional to 285,392.75, 393,844.88 and 172,193.63
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Solution
The fourth proportional to 285,392.75, 393,844.88 and 172,193.63 is: 237,628.95
Step by Step Solution
- Step 1: Write the proportion equation
285,392.75 : 393,844.88 = 172,193.63 : x - Step 2: Convert to fraction form
285,392.75/393,844.88 = 172,193.63/x - Step 3: Cross multiply
285,392.75x = 393,844.88 × 172,193.63 - Step 4: Simplify right side
285,392.75x = 67,817,578,005.37 - Step 5: Solve for x
x = 67,817,578,005.37/285,392.75 - Step 6: Final answer
x = 237,628.95
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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.