Finding the Fourth Proportional to 240,356.24, 331,654.76 and 138,361.99
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Solution
The fourth proportional to 240,356.24, 331,654.76 and 138,361.99 is: 190,918.33
Step by Step Solution
- Step 1: Write the proportion equation
240,356.24 : 331,654.76 = 138,361.99 : x - Step 2: Convert to fraction form
240,356.24/331,654.76 = 138,361.99/x - Step 3: Cross multiply
240,356.24x = 331,654.76 × 138,361.99 - Step 4: Simplify right side
240,356.24x = 45,888,410,236.49 - Step 5: Solve for x
x = 45,888,410,236.49/240,356.24 - Step 6: Final answer
x = 190,918.33
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1.5x scale
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.