Finding the Fourth Proportional to 271,442.08, 374,549.28 and 155,147.20
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Solution
The fourth proportional to 271,442.08, 374,549.28 and 155,147.20 is: 214,079.82
Step by Step Solution
- Step 1: Write the proportion equation
271,442.08 : 374,549.28 = 155,147.20 : x - Step 2: Convert to fraction form
271,442.08/374,549.28 = 155,147.20/x - Step 3: Cross multiply
271,442.08x = 374,549.28 × 155,147.20 - Step 4: Simplify right side
271,442.08x = 58,110,272,054.02 - Step 5: Solve for x
x = 58,110,272,054.02/271,442.08 - Step 6: Final answer
x = 214,079.82
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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.