Finding the Fourth Proportional to 281,090.66, 387,842.91 and 172,217.99
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Solution
The fourth proportional to 281,090.66, 387,842.91 and 172,217.99 is: 237,622.72
Step by Step Solution
- Step 1: Write the proportion equation
281,090.66 : 387,842.91 = 172,217.99 : x - Step 2: Convert to fraction form
281,090.66/387,842.91 = 172,217.99/x - Step 3: Cross multiply
281,090.66x = 387,842.91 × 172,217.99 - Step 4: Simplify right side
281,090.66x = 66,793,526,395.95 - Step 5: Solve for x
x = 66,793,526,395.95/281,090.66 - Step 6: Final answer
x = 237,622.72
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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.