Finding the Fourth Proportional to 313,998.40, 471,106.95 and 136,632.70
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Solution
The fourth proportional to 313,998.40, 471,106.95 and 136,632.70 is: 204,996.63
Step by Step Solution
- Step 1: Write the proportion equation
313,998.40 : 471,106.95 = 136,632.70 : x - Step 2: Convert to fraction form
313,998.40/471,106.95 = 136,632.70/x - Step 3: Cross multiply
313,998.40x = 471,106.95 × 136,632.70 - Step 4: Simplify right side
313,998.40x = 64,368,614,567.27 - Step 5: Solve for x
x = 64,368,614,567.27/313,998.40 - Step 6: Final answer
x = 204,996.63
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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.