Finding the Fourth Proportional to 455,178.26, 682,768.61 and 118,221.70
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Solution
The fourth proportional to 455,178.26, 682,768.61 and 118,221.70 is: 177,332.87
Step by Step Solution
- Step 1: Write the proportion equation
455,178.26 : 682,768.61 = 118,221.70 : x - Step 2: Convert to fraction form
455,178.26/682,768.61 = 118,221.70/x - Step 3: Cross multiply
455,178.26x = 682,768.61 × 118,221.70 - Step 4: Simplify right side
455,178.26x = 80,718,065,780.84 - Step 5: Solve for x
x = 80,718,065,780.84/455,178.26 - Step 6: Final answer
x = 177,332.87
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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.