Finding the Fourth Proportional to 391,452.40, 587,178.60 and 110,972.08
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Solution
The fourth proportional to 391,452.40, 587,178.60 and 110,972.08 is: 166,458.12
Step by Step Solution
- Step 1: Write the proportion equation
391,452.40 : 587,178.60 = 110,972.08 : x - Step 2: Convert to fraction form
391,452.40/587,178.60 = 110,972.08/x - Step 3: Cross multiply
391,452.40x = 587,178.60 × 110,972.08 - Step 4: Simplify right side
391,452.40x = 65,160,430,573.49 - Step 5: Solve for x
x = 65,160,430,573.49/391,452.40 - Step 6: Final answer
x = 166,458.12
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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.