Finding the Fourth Proportional to 180,113.80, 270,170.70 and 145,121.80
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Solution
The fourth proportional to 180,113.80, 270,170.70 and 145,121.80 is: 217,682.70
Step by Step Solution
- Step 1: Write the proportion equation
180,113.80 : 270,170.70 = 145,121.80 : x - Step 2: Convert to fraction form
180,113.80/270,170.70 = 145,121.80/x - Step 3: Cross multiply
180,113.80x = 270,170.70 × 145,121.80 - Step 4: Simplify right side
180,113.80x = 39,207,658,291.26 - Step 5: Solve for x
x = 39,207,658,291.26/180,113.80 - Step 6: Final answer
x = 217,682.70
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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.