Finding the Fourth Proportional to 422,664.75, 583,277.49 and 231,679.44
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Solution
The fourth proportional to 422,664.75, 583,277.49 and 231,679.44 is: 319,717.70
Step by Step Solution
- Step 1: Write the proportion equation
422,664.75 : 583,277.49 = 231,679.44 : x - Step 2: Convert to fraction form
422,664.75/583,277.49 = 231,679.44/x - Step 3: Cross multiply
422,664.75x = 583,277.49 × 231,679.44 - Step 4: Simplify right side
422,664.75x = 135,133,402,247.81 - Step 5: Solve for x
x = 135,133,402,247.81/422,664.75 - Step 6: Final answer
x = 319,717.70
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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.