Finding the Fourth Proportional to 274,171.68, 378,354.78 and 153,313.20
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Solution
The fourth proportional to 274,171.68, 378,354.78 and 153,313.20 is: 211,571.02
Step by Step Solution
- Step 1: Write the proportion equation
274,171.68 : 378,354.78 = 153,313.20 : x - Step 2: Convert to fraction form
274,171.68/378,354.78 = 153,313.20/x - Step 3: Cross multiply
274,171.68x = 378,354.78 × 153,313.20 - Step 4: Simplify right side
274,171.68x = 58,006,782,057.10 - Step 5: Solve for x
x = 58,006,782,057.10/274,171.68 - Step 6: Final answer
x = 211,571.02
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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.