Finding the Fourth Proportional to 213,286.08, 294,308.64 and 135,734.96
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Solution
The fourth proportional to 213,286.08, 294,308.64 and 135,734.96 is: 187,297.60
Step by Step Solution
- Step 1: Write the proportion equation
213,286.08 : 294,308.64 = 135,734.96 : x - Step 2: Convert to fraction form
213,286.08/294,308.64 = 135,734.96/x - Step 3: Cross multiply
213,286.08x = 294,308.64 × 135,734.96 - Step 4: Simplify right side
213,286.08x = 39,947,971,478.05 - Step 5: Solve for x
x = 39,947,971,478.05/213,286.08 - Step 6: Final answer
x = 187,297.60
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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.