Finding the Fourth Proportional to 305,446.32, 457,985.34 and 136,936.17
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Solution
The fourth proportional to 305,446.32, 457,985.34 and 136,936.17 is: 205,321.70
Step by Step Solution
- Step 1: Write the proportion equation
305,446.32 : 457,985.34 = 136,936.17 : x - Step 2: Convert to fraction form
305,446.32/457,985.34 = 136,936.17/x - Step 3: Cross multiply
305,446.32x = 457,985.34 × 136,936.17 - Step 4: Simplify right side
305,446.32x = 62,714,758,375.75 - Step 5: Solve for x
x = 62,714,758,375.75/305,446.32 - Step 6: Final answer
x = 205,321.70
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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.