Finding the Fourth Proportional to 212,324.23, 292,973.97 and 121,662.76
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Solution
The fourth proportional to 212,324.23, 292,973.97 and 121,662.76 is: 167,875.43
Step by Step Solution
- Step 1: Write the proportion equation
212,324.23 : 292,973.97 = 121,662.76 : x - Step 2: Convert to fraction form
212,324.23/292,973.97 = 121,662.76/x - Step 3: Cross multiply
212,324.23x = 292,973.97 × 121,662.76 - Step 4: Simplify right side
212,324.23x = 35,644,021,798.36 - Step 5: Solve for x
x = 35,644,021,798.36/212,324.23 - Step 6: Final answer
x = 167,875.43
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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.