Finding the Fourth Proportional to 145,197.84, 217,757.46 and 39,991.80
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Solution
The fourth proportional to 145,197.84, 217,757.46 and 39,991.80 is: 59,976.88
Step by Step Solution
- Step 1: Write the proportion equation
145,197.84 : 217,757.46 = 39,991.80 : x - Step 2: Convert to fraction form
145,197.84/217,757.46 = 39,991.80/x - Step 3: Cross multiply
145,197.84x = 217,757.46 × 39,991.80 - Step 4: Simplify right side
145,197.84x = 8,708,512,788.83 - Step 5: Solve for x
x = 8,708,512,788.83/145,197.84 - Step 6: Final answer
x = 59,976.88
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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.