Finding the Fourth Proportional to 212,177.31, 292,782.57 and 121,537.11
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Solution
The fourth proportional to 212,177.31, 292,782.57 and 121,537.11 is: 167,708.54
Step by Step Solution
- Step 1: Write the proportion equation
212,177.31 : 292,782.57 = 121,537.11 : x - Step 2: Convert to fraction form
212,177.31/292,782.57 = 121,537.11/x - Step 3: Cross multiply
212,177.31x = 292,782.57 × 121,537.11 - Step 4: Simplify right side
212,177.31x = 35,583,947,416.17 - Step 5: Solve for x
x = 35,583,947,416.17/212,177.31 - Step 6: Final answer
x = 167,708.54
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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.