Finding the Fourth Proportional to 217,518.40, 326,396.48 and 84,403.88
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Solution
The fourth proportional to 217,518.40, 326,396.48 and 84,403.88 is: 126,651.95
Step by Step Solution
- Step 1: Write the proportion equation
217,518.40 : 326,396.48 = 84,403.88 : x - Step 2: Convert to fraction form
217,518.40/326,396.48 = 84,403.88/x - Step 3: Cross multiply
217,518.40x = 326,396.48 × 84,403.88 - Step 4: Simplify right side
217,518.40x = 27,549,129,330.34 - Step 5: Solve for x
x = 27,549,129,330.34/217,518.40 - Step 6: Final answer
x = 126,651.95
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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.