Finding the Fourth Proportional to 303,612.20, 455,418.30 and 126,027.80
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Solution
The fourth proportional to 303,612.20, 455,418.30 and 126,027.80 is: 189,041.70
Step by Step Solution
- Step 1: Write the proportion equation
303,612.20 : 455,418.30 = 126,027.80 : x - Step 2: Convert to fraction form
303,612.20/455,418.30 = 126,027.80/x - Step 3: Cross multiply
303,612.20x = 455,418.30 × 126,027.80 - Step 4: Simplify right side
303,612.20x = 57,395,366,428.74 - Step 5: Solve for x
x = 57,395,366,428.74/303,612.20 - Step 6: Final answer
x = 189,041.70
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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.