Finding the Fourth Proportional to 201,998.24, 278,745.68 and 115,937.36
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Solution
The fourth proportional to 201,998.24, 278,745.68 and 115,937.36 is: 159,986.73
Step by Step Solution
- Step 1: Write the proportion equation
201,998.24 : 278,745.68 = 115,937.36 : x - Step 2: Convert to fraction form
201,998.24/278,745.68 = 115,937.36/x - Step 3: Cross multiply
201,998.24x = 278,745.68 × 115,937.36 - Step 4: Simplify right side
201,998.24x = 32,317,038,250.60 - Step 5: Solve for x
x = 32,317,038,250.60/201,998.24 - Step 6: Final answer
x = 159,986.73
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1.5x scale
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.