Finding the Fourth Proportional to 312,169.13, 430,794.51 and 168,929.13
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Solution
The fourth proportional to 312,169.13, 430,794.51 and 168,929.13 is: 233,122.80
Step by Step Solution
- Step 1: Write the proportion equation
312,169.13 : 430,794.51 = 168,929.13 : x - Step 2: Convert to fraction form
312,169.13/430,794.51 = 168,929.13/x - Step 3: Cross multiply
312,169.13x = 430,794.51 × 168,929.13 - Step 4: Simplify right side
312,169.13x = 72,773,741,783.08 - Step 5: Solve for x
x = 72,773,741,783.08/312,169.13 - Step 6: Final answer
x = 233,122.80
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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.