Finding the Fourth Proportional to 221,421.74, 305,485.83 and 134,234.96
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Solution
The fourth proportional to 221,421.74, 305,485.83 and 134,234.96 is: 185,198.07
Step by Step Solution
- Step 1: Write the proportion equation
221,421.74 : 305,485.83 = 134,234.96 : x - Step 2: Convert to fraction form
221,421.74/305,485.83 = 134,234.96/x - Step 3: Cross multiply
221,421.74x = 305,485.83 × 134,234.96 - Step 4: Simplify right side
221,421.74x = 41,006,878,170.62 - Step 5: Solve for x
x = 41,006,878,170.62/221,421.74 - Step 6: Final answer
x = 185,198.07
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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.