Finding the Fourth Proportional to 314,555.40, 434,091.06 and 178,584.84
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Solution
The fourth proportional to 314,555.40, 434,091.06 and 178,584.84 is: 246,449.70
Step by Step Solution
- Step 1: Write the proportion equation
314,555.40 : 434,091.06 = 178,584.84 : x - Step 2: Convert to fraction form
314,555.40/434,091.06 = 178,584.84/x - Step 3: Cross multiply
314,555.40x = 434,091.06 × 178,584.84 - Step 4: Simplify right side
314,555.40x = 77,522,082,495.53 - Step 5: Solve for x
x = 77,522,082,495.53/314,555.40 - Step 6: Final answer
x = 246,449.70
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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.