Finding the Fourth Proportional to 201,923.97, 278,656.17 and 115,876.10
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Solution
The fourth proportional to 201,923.97, 278,656.17 and 115,876.10 is: 159,909.64
Step by Step Solution
- Step 1: Write the proportion equation
201,923.97 : 278,656.17 = 115,876.10 : x - Step 2: Convert to fraction form
201,923.97/278,656.17 = 115,876.10/x - Step 3: Cross multiply
201,923.97x = 278,656.17 × 115,876.10 - Step 4: Simplify right side
201,923.97x = 32,289,588,827.26 - Step 5: Solve for x
x = 32,289,588,827.26/201,923.97 - Step 6: Final answer
x = 159,909.64
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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.