Finding the Fourth Proportional to 258,224.76, 387,361.44 and 89,718.84
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Solution
The fourth proportional to 258,224.76, 387,361.44 and 89,718.84 is: 134,586.70
Step by Step Solution
- Step 1: Write the proportion equation
258,224.76 : 387,361.44 = 89,718.84 : x - Step 2: Convert to fraction form
258,224.76/387,361.44 = 89,718.84/x - Step 3: Cross multiply
258,224.76x = 387,361.44 × 89,718.84 - Step 4: Simplify right side
258,224.76x = 34,753,619,057.53 - Step 5: Solve for x
x = 34,753,619,057.53/258,224.76 - Step 6: Final answer
x = 134,586.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.