Finding the Fourth Proportional to 201,859.13, 278,565.60 and 112,435.13
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Solution
The fourth proportional to 201,859.13, 278,565.60 and 112,435.13 is: 155,160.48
Step by Step Solution
- Step 1: Write the proportion equation
201,859.13 : 278,565.60 = 112,435.13 : x - Step 2: Convert to fraction form
201,859.13/278,565.60 = 112,435.13/x - Step 3: Cross multiply
201,859.13x = 278,565.60 × 112,435.13 - Step 4: Simplify right side
201,859.13x = 31,320,559,449.53 - Step 5: Solve for x
x = 31,320,559,449.53/201,859.13 - Step 6: Final answer
x = 155,160.48
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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.