Finding the Fourth Proportional to 171,430.80, 256,708.80 and 136,438.80
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Solution
The fourth proportional to 171,430.80, 256,708.80 and 136,438.80 is: 204,310.08
Step by Step Solution
- Step 1: Write the proportion equation
171,430.80 : 256,708.80 = 136,438.80 : x - Step 2: Convert to fraction form
171,430.80/256,708.80 = 136,438.80/x - Step 3: Cross multiply
171,430.80x = 256,708.80 × 136,438.80 - Step 4: Simplify right side
171,430.80x = 35,025,040,621.44 - Step 5: Solve for x
x = 35,025,040,621.44/171,430.80 - Step 6: Final answer
x = 204,310.08
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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.