Finding the Fourth Proportional to 178,870.72, 246,537.12 and 122,183.68
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Solution
The fourth proportional to 178,870.72, 246,537.12 and 122,183.68 is: 168,405.50
Step by Step Solution
- Step 1: Write the proportion equation
178,870.72 : 246,537.12 = 122,183.68 : x - Step 2: Convert to fraction form
178,870.72/246,537.12 = 122,183.68/x - Step 3: Cross multiply
178,870.72x = 246,537.12 × 122,183.68 - Step 4: Simplify right side
178,870.72x = 30,122,812,578.20 - Step 5: Solve for x
x = 30,122,812,578.20/178,870.72 - Step 6: Final answer
x = 168,405.50
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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.