Finding the Fourth Proportional to 399,549.18, 551,394.63 and 229,783.44
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Solution
The fourth proportional to 399,549.18, 551,394.63 and 229,783.44 is: 317,110.79
Step by Step Solution
- Step 1: Write the proportion equation
399,549.18 : 551,394.63 = 229,783.44 : x - Step 2: Convert to fraction form
399,549.18/551,394.63 = 229,783.44/x - Step 3: Cross multiply
399,549.18x = 551,394.63 × 229,783.44 - Step 4: Simplify right side
399,549.18x = 126,701,354,878.93 - Step 5: Solve for x
x = 126,701,354,878.93/399,549.18 - Step 6: Final answer
x = 317,110.79
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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.