Finding the Fourth Proportional to 422,322.18, 582,583.65 and 261,125.70
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Solution
The fourth proportional to 422,322.18, 582,583.65 and 261,125.70 is: 360,216.85
Step by Step Solution
- Step 1: Write the proportion equation
422,322.18 : 582,583.65 = 261,125.70 : x - Step 2: Convert to fraction form
422,322.18/582,583.65 = 261,125.70/x - Step 3: Cross multiply
422,322.18x = 582,583.65 × 261,125.70 - Step 4: Simplify right side
422,322.18x = 152,127,563,414.81 - Step 5: Solve for x
x = 152,127,563,414.81/422,322.18 - Step 6: Final answer
x = 360,216.85
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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.