Finding the Fourth Proportional to 274,168.68, 378,350.64 and 153,310.20
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Solution
The fourth proportional to 274,168.68, 378,350.64 and 153,310.20 is: 211,566.88
Step by Step Solution
- Step 1: Write the proportion equation
274,168.68 : 378,350.64 = 153,310.20 : x - Step 2: Convert to fraction form
274,168.68/378,350.64 = 153,310.20/x - Step 3: Cross multiply
274,168.68x = 378,350.64 × 153,310.20 - Step 4: Simplify right side
274,168.68x = 58,005,012,288.53 - Step 5: Solve for x
x = 58,005,012,288.53/274,168.68 - Step 6: Final answer
x = 211,566.88
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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.