Finding the Fourth Proportional to 210,912.18, 291,063.83 and 120,276.83
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Solution
The fourth proportional to 210,912.18, 291,063.83 and 120,276.83 is: 165,984.88
Step by Step Solution
- Step 1: Write the proportion equation
210,912.18 : 291,063.83 = 120,276.83 : x - Step 2: Convert to fraction form
210,912.18/291,063.83 = 120,276.83/x - Step 3: Cross multiply
210,912.18x = 291,063.83 × 120,276.83 - Step 4: Simplify right side
210,912.18x = 35,008,232,743.36 - Step 5: Solve for x
x = 35,008,232,743.36/210,912.18 - Step 6: Final answer
x = 165,984.88
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1.5x scale
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.