Finding the Fourth Proportional to 155,320.62, 232,639.44 and 128,361.06
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Solution
The fourth proportional to 155,320.62, 232,639.44 and 128,361.06 is: 192,259.37
Step by Step Solution
- Step 1: Write the proportion equation
155,320.62 : 232,639.44 = 128,361.06 : x - Step 2: Convert to fraction form
155,320.62/232,639.44 = 128,361.06/x - Step 3: Cross multiply
155,320.62x = 232,639.44 × 128,361.06 - Step 4: Simplify right side
155,320.62x = 29,861,845,116.21 - Step 5: Solve for x
x = 29,861,845,116.21/155,320.62 - Step 6: Final answer
x = 192,259.37
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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.