Finding the Fourth Proportional to 230,517.28, 318,072.99 and 128,534.64
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Solution
The fourth proportional to 230,517.28, 318,072.99 and 128,534.64 is: 177,355.02
Step by Step Solution
- Step 1: Write the proportion equation
230,517.28 : 318,072.99 = 128,534.64 : x - Step 2: Convert to fraction form
230,517.28/318,072.99 = 128,534.64/x - Step 3: Cross multiply
230,517.28x = 318,072.99 × 128,534.64 - Step 4: Simplify right side
230,517.28x = 40,883,397,263.37 - Step 5: Solve for x
x = 40,883,397,263.37/230,517.28 - Step 6: Final answer
x = 177,355.02
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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.