Finding the Fourth Proportional to 312,410.16, 431,125.36 and 169,170.60
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Solution
The fourth proportional to 312,410.16, 431,125.36 and 169,170.60 is: 233,455.07
Step by Step Solution
- Step 1: Write the proportion equation
312,410.16 : 431,125.36 = 169,170.60 : x - Step 2: Convert to fraction form
312,410.16/431,125.36 = 169,170.60/x - Step 3: Cross multiply
312,410.16x = 431,125.36 × 169,170.60 - Step 4: Simplify right side
312,410.16x = 72,933,735,826.42 - Step 5: Solve for x
x = 72,933,735,826.42/312,410.16 - Step 6: Final answer
x = 233,455.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.