Finding the Fourth Proportional to 201,768.04, 278,429.22 and 115,722.55
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Solution
The fourth proportional to 201,768.04, 278,429.22 and 115,722.55 is: 159,690.99
Step by Step Solution
- Step 1: Write the proportion equation
201,768.04 : 278,429.22 = 115,722.55 : x - Step 2: Convert to fraction form
201,768.04/278,429.22 = 115,722.55/x - Step 3: Cross multiply
201,768.04x = 278,429.22 × 115,722.55 - Step 4: Simplify right side
201,768.04x = 32,220,538,636.84 - Step 5: Solve for x
x = 32,220,538,636.84/201,768.04 - Step 6: Final answer
x = 159,690.99
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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.