Finding the Fourth Proportional to 397,246.94, 548,199.60 and 215,958.68
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Solution
The fourth proportional to 397,246.94, 548,199.60 and 215,958.68 is: 298,022.34
Step by Step Solution
- Step 1: Write the proportion equation
397,246.94 : 548,199.60 = 215,958.68 : x - Step 2: Convert to fraction form
397,246.94/548,199.60 = 215,958.68/x - Step 3: Cross multiply
397,246.94x = 548,199.60 × 215,958.68 - Step 4: Simplify right side
397,246.94x = 118,388,461,992.53 - Step 5: Solve for x
x = 118,388,461,992.53/397,246.94 - Step 6: Final answer
x = 298,022.34
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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.