Finding the Fourth Proportional to 397,323.75, 548,306.78 and 218,475.75
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Solution
The fourth proportional to 397,323.75, 548,306.78 and 218,475.75 is: 301,496.54
Step by Step Solution
- Step 1: Write the proportion equation
397,323.75 : 548,306.78 = 218,475.75 : x - Step 2: Convert to fraction form
397,323.75/548,306.78 = 218,475.75/x - Step 3: Cross multiply
397,323.75x = 548,306.78 × 218,475.75 - Step 4: Simplify right side
397,323.75x = 119,791,733,898.21 - Step 5: Solve for x
x = 119,791,733,898.21/397,323.75 - Step 6: Final answer
x = 301,496.54
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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.