Finding the Fourth Proportional to 197,421.68, 272,441.88 and 106,777.62
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Solution
The fourth proportional to 197,421.68, 272,441.88 and 106,777.62 is: 147,353.09
Step by Step Solution
- Step 1: Write the proportion equation
197,421.68 : 272,441.88 = 106,777.62 : x - Step 2: Convert to fraction form
197,421.68/272,441.88 = 106,777.62/x - Step 3: Cross multiply
197,421.68x = 272,441.88 × 106,777.62 - Step 4: Simplify right side
197,421.68x = 29,090,695,534.73 - Step 5: Solve for x
x = 29,090,695,534.73/197,421.68 - Step 6: Final answer
x = 147,353.09
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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.