Finding the Fourth Proportional to 180,219.05, 270,407.65 and 85,517.70
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Solution
The fourth proportional to 180,219.05, 270,407.65 and 85,517.70 is: 128,314.07
Step by Step Solution
- Step 1: Write the proportion equation
180,219.05 : 270,407.65 = 85,517.70 : x - Step 2: Convert to fraction form
180,219.05/270,407.65 = 85,517.70/x - Step 3: Cross multiply
180,219.05x = 270,407.65 × 85,517.70 - Step 4: Simplify right side
180,219.05x = 23,124,640,290.41 - Step 5: Solve for x
x = 23,124,640,290.41/180,219.05 - Step 6: Final answer
x = 128,314.07
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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.