Finding the Fourth Proportional to 201,902.38, 278,637.48 and 111,258.19
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Solution
The fourth proportional to 201,902.38, 278,637.48 and 111,258.19 is: 153,543.02
Step by Step Solution
- Step 1: Write the proportion equation
201,902.38 : 278,637.48 = 111,258.19 : x - Step 2: Convert to fraction form
201,902.38/278,637.48 = 111,258.19/x - Step 3: Cross multiply
201,902.38x = 278,637.48 × 111,258.19 - Step 4: Simplify right side
201,902.38x = 31,000,701,690.96 - Step 5: Solve for x
x = 31,000,701,690.96/201,902.38 - Step 6: Final answer
x = 153,543.02
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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.