Finding the Fourth Proportional to 319,775.55, 479,121.35 and 193,149.76
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Solution
The fourth proportional to 319,775.55, 479,121.35 and 193,149.76 is: 289,397.28
Step by Step Solution
- Step 1: Write the proportion equation
319,775.55 : 479,121.35 = 193,149.76 : x - Step 2: Convert to fraction form
319,775.55/479,121.35 = 193,149.76/x - Step 3: Cross multiply
319,775.55x = 479,121.35 × 193,149.76 - Step 4: Simplify right side
319,775.55x = 92,542,173,763.38 - Step 5: Solve for x
x = 92,542,173,763.38/319,775.55 - Step 6: Final answer
x = 289,397.28
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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.