Finding the Fourth Proportional to 438,893.22, 658,272.60 and 139,334.70
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Solution
The fourth proportional to 438,893.22, 658,272.60 and 139,334.70 is: 208,980.71
Step by Step Solution
- Step 1: Write the proportion equation
438,893.22 : 658,272.60 = 139,334.70 : x - Step 2: Convert to fraction form
438,893.22/658,272.60 = 139,334.70/x - Step 3: Cross multiply
438,893.22x = 658,272.60 × 139,334.70 - Step 4: Simplify right side
438,893.22x = 91,720,215,239.22 - Step 5: Solve for x
x = 91,720,215,239.22/438,893.22 - Step 6: Final answer
x = 208,980.71
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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.