Finding the Fourth Proportional to 399,729.21, 551,657.73 and 227,654.43
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Solution
The fourth proportional to 399,729.21, 551,657.73 and 227,654.43 is: 314,181.01
Step by Step Solution
- Step 1: Write the proportion equation
399,729.21 : 551,657.73 = 227,654.43 : x - Step 2: Convert to fraction form
399,729.21/551,657.73 = 227,654.43/x - Step 3: Cross multiply
399,729.21x = 551,657.73 × 227,654.43 - Step 4: Simplify right side
399,729.21x = 125,587,326,078.24 - Step 5: Solve for x
x = 125,587,326,078.24/399,729.21 - Step 6: Final answer
x = 314,181.01
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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.