Finding the Fourth Proportional to 211,739.08, 292,204.04 and 121,109.80
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Solution
The fourth proportional to 211,739.08, 292,204.04 and 121,109.80 is: 167,133.87
Step by Step Solution
- Step 1: Write the proportion equation
211,739.08 : 292,204.04 = 121,109.80 : x - Step 2: Convert to fraction form
211,739.08/292,204.04 = 121,109.80/x - Step 3: Cross multiply
211,739.08x = 292,204.04 × 121,109.80 - Step 4: Simplify right side
211,739.08x = 35,388,772,843.59 - Step 5: Solve for x
x = 35,388,772,843.59/211,739.08 - Step 6: Final answer
x = 167,133.87
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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.