Finding the Fourth Proportional to 422,635.41, 583,236.84 and 231,644.70
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Solution
The fourth proportional to 422,635.41, 583,236.84 and 231,644.70 is: 319,669.67
Step by Step Solution
- Step 1: Write the proportion equation
422,635.41 : 583,236.84 = 231,644.70 : x - Step 2: Convert to fraction form
422,635.41/583,236.84 = 231,644.70/x - Step 3: Cross multiply
422,635.41x = 583,236.84 × 231,644.70 - Step 4: Simplify right side
422,635.41x = 135,103,722,830.75 - Step 5: Solve for x
x = 135,103,722,830.75/422,635.41 - Step 6: Final answer
x = 319,669.67
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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.