Finding the Fourth Proportional to 283,515.84, 423,052.56 and 253,728.96
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Solution
The fourth proportional to 283,515.84, 423,052.56 and 253,728.96 is: 378,605.60
Step by Step Solution
- Step 1: Write the proportion equation
283,515.84 : 423,052.56 = 253,728.96 : x - Step 2: Convert to fraction form
283,515.84/423,052.56 = 253,728.96/x - Step 3: Cross multiply
283,515.84x = 423,052.56 × 253,728.96 - Step 4: Simplify right side
283,515.84x = 107,340,686,074.14 - Step 5: Solve for x
x = 107,340,686,074.14/283,515.84 - Step 6: Final answer
x = 378,605.60
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.