Finding the Fourth Proportional to 240,548.18, 331,991.60 and 138,553.79
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Solution
The fourth proportional to 240,548.18, 331,991.60 and 138,553.79 is: 191,224.45
Step by Step Solution
- Step 1: Write the proportion equation
240,548.18 : 331,991.60 = 138,553.79 : x - Step 2: Convert to fraction form
240,548.18/331,991.60 = 138,553.79/x - Step 3: Cross multiply
240,548.18x = 331,991.60 × 138,553.79 - Step 4: Simplify right side
240,548.18x = 45,998,692,075.44 - Step 5: Solve for x
x = 45,998,692,075.44/240,548.18 - Step 6: Final answer
x = 191,224.45
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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.