Finding the Fourth Proportional to 211,998.16, 292,556.50 and 121,353.63
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Solution
The fourth proportional to 211,998.16, 292,556.50 and 121,353.63 is: 167,467.46
Step by Step Solution
- Step 1: Write the proportion equation
211,998.16 : 292,556.50 = 121,353.63 : x - Step 2: Convert to fraction form
211,998.16/292,556.50 = 121,353.63/x - Step 3: Cross multiply
211,998.16x = 292,556.50 × 121,353.63 - Step 4: Simplify right side
211,998.16x = 35,502,793,255.10 - Step 5: Solve for x
x = 35,502,793,255.10/211,998.16 - Step 6: Final answer
x = 167,467.46
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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.