Finding the Fourth Proportional to 255,635.48, 383,628.18 and 137,343.08
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Solution
The fourth proportional to 255,635.48, 383,628.18 and 137,343.08 is: 206,108.62
Step by Step Solution
- Step 1: Write the proportion equation
255,635.48 : 383,628.18 = 137,343.08 : x - Step 2: Convert to fraction form
255,635.48/383,628.18 = 137,343.08/x - Step 3: Cross multiply
255,635.48x = 383,628.18 × 137,343.08 - Step 4: Simplify right side
255,635.48x = 52,688,675,815.99 - Step 5: Solve for x
x = 52,688,675,815.99/255,635.48 - Step 6: Final answer
x = 206,108.62
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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.