Finding the Fourth Proportional to 210,961.58, 291,126.49 and 115,467.44
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Solution
The fourth proportional to 210,961.58, 291,126.49 and 115,467.44 is: 159,344.79
Step by Step Solution
- Step 1: Write the proportion equation
210,961.58 : 291,126.49 = 115,467.44 : x - Step 2: Convert to fraction form
210,961.58/291,126.49 = 115,467.44/x - Step 3: Cross multiply
210,961.58x = 291,126.49 × 115,467.44 - Step 4: Simplify right side
210,961.58x = 33,615,628,772.18 - Step 5: Solve for x
x = 33,615,628,772.18/210,961.58 - Step 6: Final answer
x = 159,344.79
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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.