Finding the Fourth Proportional to 208,984.20, 313,553.10 and 84,337.80
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Solution
The fourth proportional to 208,984.20, 313,553.10 and 84,337.80 is: 126,537.69
Step by Step Solution
- Step 1: Write the proportion equation
208,984.20 : 313,553.10 = 84,337.80 : x - Step 2: Convert to fraction form
208,984.20/313,553.10 = 84,337.80/x - Step 3: Cross multiply
208,984.20x = 313,553.10 × 84,337.80 - Step 4: Simplify right side
208,984.20x = 26,444,378,637.18 - Step 5: Solve for x
x = 26,444,378,637.18/208,984.20 - Step 6: Final answer
x = 126,537.69
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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.