Finding the Fourth Proportional to 392,146.96, 587,933.70 and 125,755.84
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Solution
The fourth proportional to 392,146.96, 587,933.70 and 125,755.84 is: 188,541.81
Step by Step Solution
- Step 1: Write the proportion equation
392,146.96 : 587,933.70 = 125,755.84 : x - Step 2: Convert to fraction form
392,146.96/587,933.70 = 125,755.84/x - Step 3: Cross multiply
392,146.96x = 587,933.70 × 125,755.84 - Step 4: Simplify right side
392,146.96x = 73,936,096,307.81 - Step 5: Solve for x
x = 73,936,096,307.81/392,146.96 - Step 6: Final answer
x = 188,541.81
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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.