Finding the Fourth Proportional to 378,115.84, 521,482.08 and 227,183.68
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Solution
The fourth proportional to 378,115.84, 521,482.08 and 227,183.68 is: 313,322.55
Step by Step Solution
- Step 1: Write the proportion equation
378,115.84 : 521,482.08 = 227,183.68 : x - Step 2: Convert to fraction form
378,115.84/521,482.08 = 227,183.68/x - Step 3: Cross multiply
378,115.84x = 521,482.08 × 227,183.68 - Step 4: Simplify right side
378,115.84x = 118,472,217,988.45 - Step 5: Solve for x
x = 118,472,217,988.45/378,115.84 - Step 6: Final answer
x = 313,322.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.