Finding the Fourth Proportional to 258,279.57, 387,441.63 and 71,291.07
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Solution
The fourth proportional to 258,279.57, 387,441.63 and 71,291.07 is: 106,942.75
Step by Step Solution
- Step 1: Write the proportion equation
258,279.57 : 387,441.63 = 71,291.07 : x - Step 2: Convert to fraction form
258,279.57/387,441.63 = 71,291.07/x - Step 3: Cross multiply
258,279.57x = 387,441.63 × 71,291.07 - Step 4: Simplify right side
258,279.57x = 27,621,128,365.24 - Step 5: Solve for x
x = 27,621,128,365.24/258,279.57 - Step 6: Final answer
x = 106,942.75
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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.