Finding the Fourth Proportional to 274,497.09, 378,807.87 and 153,649.56
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Solution
The fourth proportional to 274,497.09, 378,807.87 and 153,649.56 is: 212,037.45
Step by Step Solution
- Step 1: Write the proportion equation
274,497.09 : 378,807.87 = 153,649.56 : x - Step 2: Convert to fraction form
274,497.09/378,807.87 = 153,649.56/x - Step 3: Cross multiply
274,497.09x = 378,807.87 × 153,649.56 - Step 4: Simplify right side
274,497.09x = 58,203,662,550.04 - Step 5: Solve for x
x = 58,203,662,550.04/274,497.09 - Step 6: Final answer
x = 212,037.45
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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.