Finding the Fourth Proportional to 213,421.06, 294,438.54 and 122,762.62
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Solution
The fourth proportional to 213,421.06, 294,438.54 and 122,762.62 is: 169,364.95
Step by Step Solution
- Step 1: Write the proportion equation
213,421.06 : 294,438.54 = 122,762.62 : x - Step 2: Convert to fraction form
213,421.06/294,438.54 = 122,762.62/x - Step 3: Cross multiply
213,421.06x = 294,438.54 × 122,762.62 - Step 4: Simplify right side
213,421.06x = 36,146,046,599.37 - Step 5: Solve for x
x = 36,146,046,599.37/213,421.06 - Step 6: Final answer
x = 169,364.95
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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.