Finding the Fourth Proportional to 201,876.40, 278,595.74 and 115,851.12
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Solution
The fourth proportional to 201,876.40, 278,595.74 and 115,851.12 is: 159,878.17
Step by Step Solution
- Step 1: Write the proportion equation
201,876.40 : 278,595.74 = 115,851.12 : x - Step 2: Convert to fraction form
201,876.40/278,595.74 = 115,851.12/x - Step 3: Cross multiply
201,876.40x = 278,595.74 × 115,851.12 - Step 4: Simplify right side
201,876.40x = 32,275,628,506.23 - Step 5: Solve for x
x = 32,275,628,506.23/201,876.40 - Step 6: Final answer
x = 159,878.17
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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.