Finding the Fourth Proportional to 397,266.75, 548,228.12 and 218,418.75
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Solution
The fourth proportional to 397,266.75, 548,228.12 and 218,418.75 is: 301,417.88
Step by Step Solution
- Step 1: Write the proportion equation
397,266.75 : 548,228.12 = 218,418.75 : x - Step 2: Convert to fraction form
397,266.75/548,228.12 = 218,418.75/x - Step 3: Cross multiply
397,266.75x = 548,228.12 × 218,418.75 - Step 4: Simplify right side
397,266.75x = 119,743,299,593.16 - Step 5: Solve for x
x = 119,743,299,593.16/397,266.75 - Step 6: Final answer
x = 301,417.88
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1.5x scale
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.