Finding the Fourth Proportional to 201,860.68, 278,580.18 and 112,436.68
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Solution
The fourth proportional to 201,860.68, 278,580.18 and 112,436.68 is: 155,169.55
Step by Step Solution
- Step 1: Write the proportion equation
201,860.68 : 278,580.18 = 112,436.68 : x - Step 2: Convert to fraction form
201,860.68/278,580.18 = 112,436.68/x - Step 3: Cross multiply
201,860.68x = 278,580.18 × 112,436.68 - Step 4: Simplify right side
201,860.68x = 31,322,630,553.00 - Step 5: Solve for x
x = 31,322,630,553.00/201,860.68 - Step 6: Final answer
x = 155,169.55
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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.