Finding the Fourth Proportional to 306,834.18, 423,505.74 and 177,751.80
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Solution
The fourth proportional to 306,834.18, 423,505.74 and 177,751.80 is: 245,340.68
Step by Step Solution
- Step 1: Write the proportion equation
306,834.18 : 423,505.74 = 177,751.80 : x - Step 2: Convert to fraction form
306,834.18/423,505.74 = 177,751.80/x - Step 3: Cross multiply
306,834.18x = 423,505.74 × 177,751.80 - Step 4: Simplify right side
306,834.18x = 75,278,907,595.33 - Step 5: Solve for x
x = 75,278,907,595.33/306,834.18 - Step 6: Final answer
x = 245,340.68
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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.