Finding the Fourth Proportional to 212,321.73, 292,970.52 and 121,660.26
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Solution
The fourth proportional to 212,321.73, 292,970.52 and 121,660.26 is: 167,871.98
Step by Step Solution
- Step 1: Write the proportion equation
212,321.73 : 292,970.52 = 121,660.26 : x - Step 2: Convert to fraction form
212,321.73/292,970.52 = 121,660.26/x - Step 3: Cross multiply
212,321.73x = 292,970.52 × 121,660.26 - Step 4: Simplify right side
212,321.73x = 35,642,869,635.54 - Step 5: Solve for x
x = 35,642,869,635.54/212,321.73 - Step 6: Final answer
x = 167,871.98
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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.