Finding the Fourth Proportional to 212,394.89, 318,726.77 and 192,445.09
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Solution
The fourth proportional to 212,394.89, 318,726.77 and 192,445.09 is: 288,789.43
Step by Step Solution
- Step 1: Write the proportion equation
212,394.89 : 318,726.77 = 192,445.09 : x - Step 2: Convert to fraction form
212,394.89/318,726.77 = 192,445.09/x - Step 3: Cross multiply
212,394.89x = 318,726.77 × 192,445.09 - Step 4: Simplify right side
212,394.89x = 61,337,400,179.02 - Step 5: Solve for x
x = 61,337,400,179.02/212,394.89 - Step 6: Final answer
x = 288,789.43
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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.