Finding the Fourth Proportional to 221,321.46, 305,412.21 and 120,700.02
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Solution
The fourth proportional to 221,321.46, 305,412.21 and 120,700.02 is: 166,559.81
Step by Step Solution
- Step 1: Write the proportion equation
221,321.46 : 305,412.21 = 120,700.02 : x - Step 2: Convert to fraction form
221,321.46/305,412.21 = 120,700.02/x - Step 3: Cross multiply
221,321.46x = 305,412.21 × 120,700.02 - Step 4: Simplify right side
221,321.46x = 36,863,259,855.24 - Step 5: Solve for x
x = 36,863,259,855.24/221,321.46 - Step 6: Final answer
x = 166,559.81
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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.