Finding the Fourth Proportional to 454,791.80, 682,187.70 and 139,207.70
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Solution
The fourth proportional to 454,791.80, 682,187.70 and 139,207.70 is: 208,811.55
Step by Step Solution
- Step 1: Write the proportion equation
454,791.80 : 682,187.70 = 139,207.70 : x - Step 2: Convert to fraction form
454,791.80/682,187.70 = 139,207.70/x - Step 3: Cross multiply
454,791.80x = 682,187.70 × 139,207.70 - Step 4: Simplify right side
454,791.80x = 94,965,780,685.29 - Step 5: Solve for x
x = 94,965,780,685.29/454,791.80 - Step 6: Final answer
x = 208,811.55
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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.