Finding the Fourth Proportional to 319,795.20, 479,750.40 and 132,825.60
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Solution
The fourth proportional to 319,795.20, 479,750.40 and 132,825.60 is: 199,262.32
Step by Step Solution
- Step 1: Write the proportion equation
319,795.20 : 479,750.40 = 132,825.60 : x - Step 2: Convert to fraction form
319,795.20/479,750.40 = 132,825.60/x - Step 3: Cross multiply
319,795.20x = 479,750.40 × 132,825.60 - Step 4: Simplify right side
319,795.20x = 63,723,134,730.24 - Step 5: Solve for x
x = 63,723,134,730.24/319,795.20 - Step 6: Final answer
x = 199,262.32
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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.