Finding the Fourth Proportional to 210,960.75, 291,125.75 and 115,467.42
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Solution
The fourth proportional to 210,960.75, 291,125.75 and 115,467.42 is: 159,344.99
Step by Step Solution
- Step 1: Write the proportion equation
210,960.75 : 291,125.75 = 115,467.42 : x - Step 2: Convert to fraction form
210,960.75/291,125.75 = 115,467.42/x - Step 3: Cross multiply
210,960.75x = 291,125.75 × 115,467.42 - Step 4: Simplify right side
210,960.75x = 33,615,539,762.45 - Step 5: Solve for x
x = 33,615,539,762.45/210,960.75 - Step 6: Final answer
x = 159,344.99
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1.5x scale
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.