Finding the Fourth Proportional to 319,847.24, 479,511.66 and 132,998.60
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Solution
The fourth proportional to 319,847.24, 479,511.66 and 132,998.60 is: 199,390.12
Step by Step Solution
- Step 1: Write the proportion equation
319,847.24 : 479,511.66 = 132,998.60 : x - Step 2: Convert to fraction form
319,847.24/479,511.66 = 132,998.60/x - Step 3: Cross multiply
319,847.24x = 479,511.66 × 132,998.60 - Step 4: Simplify right side
319,847.24x = 63,774,379,463.68 - Step 5: Solve for x
x = 63,774,379,463.68/319,847.24 - Step 6: Final answer
x = 199,390.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.