Finding the Fourth Proportional to 215,517.42, 323,424.09 and 75,276.18
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Solution
The fourth proportional to 215,517.42, 323,424.09 and 75,276.18 is: 112,965.95
Step by Step Solution
- Step 1: Write the proportion equation
215,517.42 : 323,424.09 = 75,276.18 : x - Step 2: Convert to fraction form
215,517.42/323,424.09 = 75,276.18/x - Step 3: Cross multiply
215,517.42x = 323,424.09 × 75,276.18 - Step 4: Simplify right side
215,517.42x = 24,346,130,015.18 - Step 5: Solve for x
x = 24,346,130,015.18/215,517.42 - Step 6: Final answer
x = 112,965.95
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1.5x scale
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.