Finding the Fourth Proportional to 230,522.28, 318,079.86 and 128,539.62
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Solution
The fourth proportional to 230,522.28, 318,079.86 and 128,539.62 is: 177,361.88
Step by Step Solution
- Step 1: Write the proportion equation
230,522.28 : 318,079.86 = 128,539.62 : x - Step 2: Convert to fraction form
230,522.28/318,079.86 = 128,539.62/x - Step 3: Cross multiply
230,522.28x = 318,079.86 × 128,539.62 - Step 4: Simplify right side
230,522.28x = 40,885,864,334.05 - Step 5: Solve for x
x = 40,885,864,334.05/230,522.28 - Step 6: Final answer
x = 177,361.88
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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.