Finding the Fourth Proportional to 212,728.68, 318,792.18 and 118,000.56
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Solution
The fourth proportional to 212,728.68, 318,792.18 and 118,000.56 is: 176,833.96
Step by Step Solution
- Step 1: Write the proportion equation
212,728.68 : 318,792.18 = 118,000.56 : x - Step 2: Convert to fraction form
212,728.68/318,792.18 = 118,000.56/x - Step 3: Cross multiply
212,728.68x = 318,792.18 × 118,000.56 - Step 4: Simplify right side
212,728.68x = 37,617,655,763.62 - Step 5: Solve for x
x = 37,617,655,763.62/212,728.68 - Step 6: Final answer
x = 176,833.96
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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.