Finding the Fourth Proportional to 201,617.90, 278,214.63 and 116,740.70
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Solution
The fourth proportional to 201,617.90, 278,214.63 and 116,740.70 is: 161,091.70
Step by Step Solution
- Step 1: Write the proportion equation
201,617.90 : 278,214.63 = 116,740.70 : x - Step 2: Convert to fraction form
201,617.90/278,214.63 = 116,740.70/x - Step 3: Cross multiply
201,617.90x = 278,214.63 × 116,740.70 - Step 4: Simplify right side
201,617.90x = 32,478,970,656.44 - Step 5: Solve for x
x = 32,478,970,656.44/201,617.90 - Step 6: Final answer
x = 161,091.70
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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.