Finding the Fourth Proportional to 303,493.20, 455,239.80 and 163,525.20
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Solution
The fourth proportional to 303,493.20, 455,239.80 and 163,525.20 is: 245,287.80
Step by Step Solution
- Step 1: Write the proportion equation
303,493.20 : 455,239.80 = 163,525.20 : x - Step 2: Convert to fraction form
303,493.20/455,239.80 = 163,525.20/x - Step 3: Cross multiply
303,493.20x = 455,239.80 × 163,525.20 - Step 4: Simplify right side
303,493.20x = 74,443,179,342.96 - Step 5: Solve for x
x = 74,443,179,342.96/303,493.20 - Step 6: Final answer
x = 245,287.80
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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.