Finding the Fourth Proportional to 201,820.76, 278,512.70 and 116,987.02
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Solution
The fourth proportional to 201,820.76, 278,512.70 and 116,987.02 is: 161,442.12
Step by Step Solution
- Step 1: Write the proportion equation
201,820.76 : 278,512.70 = 116,987.02 : x - Step 2: Convert to fraction form
201,820.76/278,512.70 = 116,987.02/x - Step 3: Cross multiply
201,820.76x = 278,512.70 × 116,987.02 - Step 4: Simplify right side
201,820.76x = 32,582,370,805.15 - Step 5: Solve for x
x = 32,582,370,805.15/201,820.76 - Step 6: Final answer
x = 161,442.12
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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.