Finding the Fourth Proportional to 186,011.28, 256,695.84 and 101,128.08
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Solution
The fourth proportional to 186,011.28, 256,695.84 and 101,128.08 is: 139,556.90
Step by Step Solution
- Step 1: Write the proportion equation
186,011.28 : 256,695.84 = 101,128.08 : x - Step 2: Convert to fraction form
186,011.28/256,695.84 = 101,128.08/x - Step 3: Cross multiply
186,011.28x = 256,695.84 × 101,128.08 - Step 4: Simplify right side
186,011.28x = 25,959,157,443.19 - Step 5: Solve for x
x = 25,959,157,443.19/186,011.28 - Step 6: Final answer
x = 139,556.90
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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.