Finding the Fourth Proportional to 201,862.75, 278,570.60 and 112,438.75
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Solution
The fourth proportional to 201,862.75, 278,570.60 and 112,438.75 is: 155,165.48
Step by Step Solution
- Step 1: Write the proportion equation
201,862.75 : 278,570.60 = 112,438.75 : x - Step 2: Convert to fraction form
201,862.75/278,570.60 = 112,438.75/x - Step 3: Cross multiply
201,862.75x = 278,570.60 × 112,438.75 - Step 4: Simplify right side
201,862.75x = 31,322,130,050.75 - Step 5: Solve for x
x = 31,322,130,050.75/201,862.75 - Step 6: Final answer
x = 155,165.48
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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.