Finding the Fourth Proportional to 238,081.75, 357,122.63 and 71,869.75
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Solution
The fourth proportional to 238,081.75, 357,122.63 and 71,869.75 is: 107,804.63
Step by Step Solution
- Step 1: Write the proportion equation
238,081.75 : 357,122.63 = 71,869.75 : x - Step 2: Convert to fraction form
238,081.75/357,122.63 = 71,869.75/x - Step 3: Cross multiply
238,081.75x = 357,122.63 × 71,869.75 - Step 4: Simplify right side
238,081.75x = 25,666,314,137.44 - Step 5: Solve for x
x = 25,666,314,137.44/238,081.75 - Step 6: Final answer
x = 107,804.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.