Finding the Fourth Proportional to 438,442.80, 657,664.20 and 122,953.20
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Solution
The fourth proportional to 438,442.80, 657,664.20 and 122,953.20 is: 184,429.80
Step by Step Solution
- Step 1: Write the proportion equation
438,442.80 : 657,664.20 = 122,953.20 : x - Step 2: Convert to fraction form
438,442.80/657,664.20 = 122,953.20/x - Step 3: Cross multiply
438,442.80x = 657,664.20 × 122,953.20 - Step 4: Simplify right side
438,442.80x = 80,861,917,915.44 - Step 5: Solve for x
x = 80,861,917,915.44/438,442.80 - Step 6: Final answer
x = 184,429.80
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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.