Finding the Fourth Proportional to 305,872.20, 458,808.30 and 193,679.10
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Solution
The fourth proportional to 305,872.20, 458,808.30 and 193,679.10 is: 290,518.65
Step by Step Solution
- Step 1: Write the proportion equation
305,872.20 : 458,808.30 = 193,679.10 : x - Step 2: Convert to fraction form
305,872.20/458,808.30 = 193,679.10/x - Step 3: Cross multiply
305,872.20x = 458,808.30 × 193,679.10 - Step 4: Simplify right side
305,872.20x = 88,861,578,616.53 - Step 5: Solve for x
x = 88,861,578,616.53/305,872.20 - Step 6: Final answer
x = 290,518.65
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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.