Finding the Fourth Proportional to 438,416.80, 657,625.20 and 202,220.80
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Solution
The fourth proportional to 438,416.80, 657,625.20 and 202,220.80 is: 303,331.20
Step by Step Solution
- Step 1: Write the proportion equation
438,416.80 : 657,625.20 = 202,220.80 : x - Step 2: Convert to fraction form
438,416.80/657,625.20 = 202,220.80/x - Step 3: Cross multiply
438,416.80x = 657,625.20 × 202,220.80 - Step 4: Simplify right side
438,416.80x = 132,985,494,044.16 - Step 5: Solve for x
x = 132,985,494,044.16/438,416.80 - Step 6: Final answer
x = 303,331.20
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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.