Finding the Fourth Proportional to 256,966.08, 385,449.09 and 79,474.62
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Solution
The fourth proportional to 256,966.08, 385,449.09 and 79,474.62 is: 119,211.92
Step by Step Solution
- Step 1: Write the proportion equation
256,966.08 : 385,449.09 = 79,474.62 : x - Step 2: Convert to fraction form
256,966.08/385,449.09 = 79,474.62/x - Step 3: Cross multiply
256,966.08x = 385,449.09 × 79,474.62 - Step 4: Simplify right side
256,966.08x = 30,633,419,957.10 - Step 5: Solve for x
x = 30,633,419,957.10/256,966.08 - Step 6: Final answer
x = 119,211.92
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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.