Finding the Fourth Proportional to 211,334.49, 291,640.26 and 115,845.21
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Solution
The fourth proportional to 211,334.49, 291,640.26 and 115,845.21 is: 159,865.66
Step by Step Solution
- Step 1: Write the proportion equation
211,334.49 : 291,640.26 = 115,845.21 : x - Step 2: Convert to fraction form
211,334.49/291,640.26 = 115,845.21/x - Step 3: Cross multiply
211,334.49x = 291,640.26 × 115,845.21 - Step 4: Simplify right side
211,334.49x = 33,785,127,164.15 - Step 5: Solve for x
x = 33,785,127,164.15/211,334.49 - Step 6: Final answer
x = 159,865.66
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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.