Finding the Fourth Proportional to 213,129.08, 294,102.18 and 122,485.28
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Solution
The fourth proportional to 213,129.08, 294,102.18 and 122,485.28 is: 169,020.52
Step by Step Solution
- Step 1: Write the proportion equation
213,129.08 : 294,102.18 = 122,485.28 : x - Step 2: Convert to fraction form
213,129.08/294,102.18 = 122,485.28/x - Step 3: Cross multiply
213,129.08x = 294,102.18 × 122,485.28 - Step 4: Simplify right side
213,129.08x = 36,023,187,865.91 - Step 5: Solve for x
x = 36,023,187,865.91/213,129.08 - Step 6: Final answer
x = 169,020.52
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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.