Finding the Fourth Proportional to 186,467.81, 257,344.16 and 113,866.70
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Solution
The fourth proportional to 186,467.81, 257,344.16 and 113,866.70 is: 157,147.39
Step by Step Solution
- Step 1: Write the proportion equation
186,467.81 : 257,344.16 = 113,866.70 : x - Step 2: Convert to fraction form
186,467.81/257,344.16 = 113,866.70/x - Step 3: Cross multiply
186,467.81x = 257,344.16 × 113,866.70 - Step 4: Simplify right side
186,467.81x = 29,302,928,407.42 - Step 5: Solve for x
x = 29,302,928,407.42/186,467.81 - Step 6: Final answer
x = 157,147.39
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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.