Finding the Fourth Proportional to 235,640.64, 353,526.84 and 77,980.08
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Solution
The fourth proportional to 235,640.64, 353,526.84 and 77,980.08 is: 116,991.92
Step by Step Solution
- Step 1: Write the proportion equation
235,640.64 : 353,526.84 = 77,980.08 : x - Step 2: Convert to fraction form
235,640.64/353,526.84 = 77,980.08/x - Step 3: Cross multiply
235,640.64x = 353,526.84 × 77,980.08 - Step 4: Simplify right side
235,640.64x = 27,568,051,265.35 - Step 5: Solve for x
x = 27,568,051,265.35/235,640.64 - Step 6: Final answer
x = 116,991.92
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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.