Finding the Fourth Proportional to 421,908.99, 582,232.28 and 228,316.56
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Solution
The fourth proportional to 421,908.99, 582,232.28 and 228,316.56 is: 315,075.70
Step by Step Solution
- Step 1: Write the proportion equation
421,908.99 : 582,232.28 = 228,316.56 : x - Step 2: Convert to fraction form
421,908.99/582,232.28 = 228,316.56/x - Step 3: Cross multiply
421,908.99x = 582,232.28 × 228,316.56 - Step 4: Simplify right side
421,908.99x = 132,933,271,290.56 - Step 5: Solve for x
x = 132,933,271,290.56/421,908.99 - Step 6: Final answer
x = 315,075.70
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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.