Finding the Fourth Proportional to 399,636.78, 599,691.60 and 147,094.62
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Solution
The fourth proportional to 399,636.78, 599,691.60 and 147,094.62 is: 220,728.95
Step by Step Solution
- Step 1: Write the proportion equation
399,636.78 : 599,691.60 = 147,094.62 : x - Step 2: Convert to fraction form
399,636.78/599,691.60 = 147,094.62/x - Step 3: Cross multiply
399,636.78x = 599,691.60 × 147,094.62 - Step 4: Simplify right side
399,636.78x = 88,211,408,019.19 - Step 5: Solve for x
x = 88,211,408,019.19/399,636.78 - Step 6: Final answer
x = 220,728.95
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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.