Finding the Fourth Proportional to 327,791.24, 491,878.04 and 138,239.92
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Solution
The fourth proportional to 327,791.24, 491,878.04 and 138,239.92 is: 207,440.51
Step by Step Solution
- Step 1: Write the proportion equation
327,791.24 : 491,878.04 = 138,239.92 : x - Step 2: Convert to fraction form
327,791.24/491,878.04 = 138,239.92/x - Step 3: Cross multiply
327,791.24x = 491,878.04 × 138,239.92 - Step 4: Simplify right side
327,791.24x = 67,997,180,899.36 - Step 5: Solve for x
x = 67,997,180,899.36/327,791.24 - Step 6: Final answer
x = 207,440.51
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1.5x scale
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.