Finding the Fourth Proportional to 303,717.20, 455,575.80 and 135,237.20
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Solution
The fourth proportional to 303,717.20, 455,575.80 and 135,237.20 is: 202,855.80
Step by Step Solution
- Step 1: Write the proportion equation
303,717.20 : 455,575.80 = 135,237.20 : x - Step 2: Convert to fraction form
303,717.20/455,575.80 = 135,237.20/x - Step 3: Cross multiply
303,717.20x = 455,575.80 × 135,237.20 - Step 4: Simplify right side
303,717.20x = 61,610,795,579.76 - Step 5: Solve for x
x = 61,610,795,579.76/303,717.20 - Step 6: Final answer
x = 202,855.80
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1.5x scale
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.