Finding the Fourth Proportional to 378,580.84, 522,441.95 and 217,467.05
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Solution
The fourth proportional to 378,580.84, 522,441.95 and 217,467.05 is: 300,104.75
Step by Step Solution
- Step 1: Write the proportion equation
378,580.84 : 522,441.95 = 217,467.05 : x - Step 2: Convert to fraction form
378,580.84/522,441.95 = 217,467.05/x - Step 3: Cross multiply
378,580.84x = 522,441.95 × 217,467.05 - Step 4: Simplify right side
378,580.84x = 113,613,905,963.20 - Step 5: Solve for x
x = 113,613,905,963.20/378,580.84 - Step 6: Final answer
x = 300,104.75
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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.