Finding the Fourth Proportional to 312,976.99, 431,903.14 and 177,005.84
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Solution
The fourth proportional to 312,976.99, 431,903.14 and 177,005.84 is: 244,265.16
Step by Step Solution
- Step 1: Write the proportion equation
312,976.99 : 431,903.14 = 177,005.84 : x - Step 2: Convert to fraction form
312,976.99/431,903.14 = 177,005.84/x - Step 3: Cross multiply
312,976.99x = 431,903.14 × 177,005.84 - Step 4: Simplify right side
312,976.99x = 76,449,375,492.31 - Step 5: Solve for x
x = 76,449,375,492.31/312,976.99 - Step 6: Final answer
x = 244,265.16
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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.