Finding the Fourth Proportional to 438,644.43, 658,029.40 and 135,064.26
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Solution
The fourth proportional to 438,644.43, 658,029.40 and 135,064.26 is: 202,615.71
Step by Step Solution
- Step 1: Write the proportion equation
438,644.43 : 658,029.40 = 135,064.26 : x - Step 2: Convert to fraction form
438,644.43/658,029.40 = 135,064.26/x - Step 3: Cross multiply
438,644.43x = 658,029.40 × 135,064.26 - Step 4: Simplify right side
438,644.43x = 88,876,253,969.24 - Step 5: Solve for x
x = 88,876,253,969.24/438,644.43 - Step 6: Final answer
x = 202,615.71
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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.