Finding the Fourth Proportional to 201,820.78, 278,512.68 and 116,987.02
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Solution
The fourth proportional to 201,820.78, 278,512.68 and 116,987.02 is: 161,442.09
Step by Step Solution
- Step 1: Write the proportion equation
201,820.78 : 278,512.68 = 116,987.02 : x - Step 2: Convert to fraction form
201,820.78/278,512.68 = 116,987.02/x - Step 3: Cross multiply
201,820.78x = 278,512.68 × 116,987.02 - Step 4: Simplify right side
201,820.78x = 32,582,368,465.41 - Step 5: Solve for x
x = 32,582,368,465.41/201,820.78 - Step 6: Final answer
x = 161,442.09
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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.