Finding the Fourth Proportional to 362,213.80, 543,320.70 and 212,525.80
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Solution
The fourth proportional to 362,213.80, 543,320.70 and 212,525.80 is: 318,788.70
Step by Step Solution
- Step 1: Write the proportion equation
362,213.80 : 543,320.70 = 212,525.80 : x - Step 2: Convert to fraction form
362,213.80/543,320.70 = 212,525.80/x - Step 3: Cross multiply
362,213.80x = 543,320.70 × 212,525.80 - Step 4: Simplify right side
362,213.80x = 115,469,666,424.06 - Step 5: Solve for x
x = 115,469,666,424.06/362,213.80 - Step 6: Final answer
x = 318,788.70
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1.5x scale
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.