Finding the Fourth Proportional to 221,332.68, 305,440.06 and 120,732.84
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Solution
The fourth proportional to 221,332.68, 305,440.06 and 120,732.84 is: 166,611.84
Step by Step Solution
- Step 1: Write the proportion equation
221,332.68 : 305,440.06 = 120,732.84 : x - Step 2: Convert to fraction form
221,332.68/305,440.06 = 120,732.84/x - Step 3: Cross multiply
221,332.68x = 305,440.06 × 120,732.84 - Step 4: Simplify right side
221,332.68x = 36,876,645,893.57 - Step 5: Solve for x
x = 36,876,645,893.57/221,332.68 - Step 6: Final answer
x = 166,611.84
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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.