Finding the Fourth Proportional to 270,361.76, 405,291.63 and 128,273.81
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Solution
The fourth proportional to 270,361.76, 405,291.63 and 128,273.81 is: 192,291.62
Step by Step Solution
- Step 1: Write the proportion equation
270,361.76 : 405,291.63 = 128,273.81 : x - Step 2: Convert to fraction form
270,361.76/405,291.63 = 128,273.81/x - Step 3: Cross multiply
270,361.76x = 405,291.63 × 128,273.81 - Step 4: Simplify right side
270,361.76x = 51,988,301,541.21 - Step 5: Solve for x
x = 51,988,301,541.21/270,361.76 - Step 6: Final answer
x = 192,291.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.