Finding the Fourth Proportional to 306,917.19, 423,566.99 and 186,063.57
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Solution
The fourth proportional to 306,917.19, 423,566.99 and 186,063.57 is: 256,780.62
Step by Step Solution
- Step 1: Write the proportion equation
306,917.19 : 423,566.99 = 186,063.57 : x - Step 2: Convert to fraction form
306,917.19/423,566.99 = 186,063.57/x - Step 3: Cross multiply
306,917.19x = 423,566.99 × 186,063.57 - Step 4: Simplify right side
306,917.19x = 78,810,385,363.24 - Step 5: Solve for x
x = 78,810,385,363.24/306,917.19 - Step 6: Final answer
x = 256,780.62
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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.