Finding the Fourth Proportional to 288,832.68, 433,351.62 and 128,894.10
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Solution
The fourth proportional to 288,832.68, 433,351.62 and 128,894.10 is: 193,386.94
Step by Step Solution
- Step 1: Write the proportion equation
288,832.68 : 433,351.62 = 128,894.10 : x - Step 2: Convert to fraction form
288,832.68/433,351.62 = 128,894.10/x - Step 3: Cross multiply
288,832.68x = 433,351.62 × 128,894.10 - Step 4: Simplify right side
288,832.68x = 55,856,467,043.44 - Step 5: Solve for x
x = 55,856,467,043.44/288,832.68 - Step 6: Final answer
x = 193,386.94
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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.