Finding the Fourth Proportional to 212,015.34, 292,567.38 and 121,372.02
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Solution
The fourth proportional to 212,015.34, 292,567.38 and 121,372.02 is: 167,485.49
Step by Step Solution
- Step 1: Write the proportion equation
212,015.34 : 292,567.38 = 121,372.02 : x - Step 2: Convert to fraction form
212,015.34/292,567.38 = 121,372.02/x - Step 3: Cross multiply
212,015.34x = 292,567.38 × 121,372.02 - Step 4: Simplify right side
212,015.34x = 35,509,493,896.71 - Step 5: Solve for x
x = 35,509,493,896.71/212,015.34 - Step 6: Final answer
x = 167,485.49
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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.