Finding the Fourth Proportional to 422,129.44, 632,750.82 and 155,720.44
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Solution
The fourth proportional to 422,129.44, 632,750.82 and 155,720.44 is: 233,417.12
Step by Step Solution
- Step 1: Write the proportion equation
422,129.44 : 632,750.82 = 155,720.44 : x - Step 2: Convert to fraction form
422,129.44/632,750.82 = 155,720.44/x - Step 3: Cross multiply
422,129.44x = 632,750.82 × 155,720.44 - Step 4: Simplify right side
422,129.44x = 98,532,236,100.76 - Step 5: Solve for x
x = 98,532,236,100.76/422,129.44 - Step 6: Final answer
x = 233,417.12
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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.