Finding the Fourth Proportional to 213,132.76, 294,125.64 and 117,639.53
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Solution
The fourth proportional to 213,132.76, 294,125.64 and 117,639.53 is: 162,343.89
Step by Step Solution
- Step 1: Write the proportion equation
213,132.76 : 294,125.64 = 117,639.53 : x - Step 2: Convert to fraction form
213,132.76/294,125.64 = 117,639.53/x - Step 3: Cross multiply
213,132.76x = 294,125.64 × 117,639.53 - Step 4: Simplify right side
213,132.76x = 34,600,802,050.55 - Step 5: Solve for x
x = 34,600,802,050.55/213,132.76 - Step 6: Final answer
x = 162,343.89
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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.