Finding the Fourth Proportional to 197,331.46, 272,135.70 and 129,323.66
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Solution
The fourth proportional to 197,331.46, 272,135.70 and 129,323.66 is: 178,347.56
Step by Step Solution
- Step 1: Write the proportion equation
197,331.46 : 272,135.70 = 129,323.66 : x - Step 2: Convert to fraction form
197,331.46/272,135.70 = 129,323.66/x - Step 3: Cross multiply
197,331.46x = 272,135.70 × 129,323.66 - Step 4: Simplify right side
197,331.46x = 35,193,583,379.98 - Step 5: Solve for x
x = 35,193,583,379.98/197,331.46 - Step 6: Final answer
x = 178,347.56
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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.