Finding the Fourth Proportional to 279,640.36, 385,771.66 and 189,027.91
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Solution
The fourth proportional to 279,640.36, 385,771.66 and 189,027.91 is: 260,769.26
Step by Step Solution
- Step 1: Write the proportion equation
279,640.36 : 385,771.66 = 189,027.91 : x - Step 2: Convert to fraction form
279,640.36/385,771.66 = 189,027.91/x - Step 3: Cross multiply
279,640.36x = 385,771.66 × 189,027.91 - Step 4: Simplify right side
279,640.36x = 72,921,610,627.03 - Step 5: Solve for x
x = 72,921,610,627.03/279,640.36 - Step 6: Final answer
x = 260,769.26
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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.