Finding the Fourth Proportional to 422,515.44, 633,774.60 and 106,972.20
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Solution
The fourth proportional to 422,515.44, 633,774.60 and 106,972.20 is: 160,458.66
Step by Step Solution
- Step 1: Write the proportion equation
422,515.44 : 633,774.60 = 106,972.20 : x - Step 2: Convert to fraction form
422,515.44/633,774.60 = 106,972.20/x - Step 3: Cross multiply
422,515.44x = 633,774.60 × 106,972.20 - Step 4: Simplify right side
422,515.44x = 67,796,263,266.12 - Step 5: Solve for x
x = 67,796,263,266.12/422,515.44 - Step 6: Final answer
x = 160,458.66
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1.5x scale
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.