Finding the Fourth Proportional to 230,922.30, 318,745.35 and 135,467.58
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Solution
The fourth proportional to 230,922.30, 318,745.35 and 135,467.58 is: 186,987.84
Step by Step Solution
- Step 1: Write the proportion equation
230,922.30 : 318,745.35 = 135,467.58 : x - Step 2: Convert to fraction form
230,922.30/318,745.35 = 135,467.58/x - Step 3: Cross multiply
230,922.30x = 318,745.35 × 135,467.58 - Step 4: Simplify right side
230,922.30x = 43,179,661,200.75 - Step 5: Solve for x
x = 43,179,661,200.75/230,922.30 - Step 6: Final answer
x = 186,987.84
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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.