Finding the Fourth Proportional to 213,795.21, 294,947.01 and 123,129.48
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Solution
The fourth proportional to 213,795.21, 294,947.01 and 123,129.48 is: 169,866.63
Step by Step Solution
- Step 1: Write the proportion equation
213,795.21 : 294,947.01 = 123,129.48 : x - Step 2: Convert to fraction form
213,795.21/294,947.01 = 123,129.48/x - Step 3: Cross multiply
213,795.21x = 294,947.01 × 123,129.48 - Step 4: Simplify right side
213,795.21x = 36,316,671,968.85 - Step 5: Solve for x
x = 36,316,671,968.85/213,795.21 - Step 6: Final answer
x = 169,866.63
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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.