Finding the Fourth Proportional to 312,445.24, 431,172.28 and 169,202.00
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Solution
The fourth proportional to 312,445.24, 431,172.28 and 169,202.00 is: 233,497.60
Step by Step Solution
- Step 1: Write the proportion equation
312,445.24 : 431,172.28 = 169,202.00 : x - Step 2: Convert to fraction form
312,445.24/431,172.28 = 169,202.00/x - Step 3: Cross multiply
312,445.24x = 431,172.28 × 169,202.00 - Step 4: Simplify right side
312,445.24x = 72,955,213,409.99 - Step 5: Solve for x
x = 72,955,213,409.99/312,445.24 - Step 6: Final answer
x = 233,497.60
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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.