Finding the Fourth Proportional to 155,302.12, 214,302.12 and 90,786.44
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Solution
The fourth proportional to 155,302.12, 214,302.12 and 90,786.44 is: 125,276.63
Step by Step Solution
- Step 1: Write the proportion equation
155,302.12 : 214,302.12 = 90,786.44 : x - Step 2: Convert to fraction form
155,302.12/214,302.12 = 90,786.44/x - Step 3: Cross multiply
155,302.12x = 214,302.12 × 90,786.44 - Step 4: Simplify right side
155,302.12x = 19,455,726,559.25 - Step 5: Solve for x
x = 19,455,726,559.25/155,302.12 - Step 6: Final answer
x = 125,276.63
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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.