Finding the Fourth Proportional to 312,245.69, 430,894.28 and 174,426.41
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Solution
The fourth proportional to 312,245.69, 430,894.28 and 174,426.41 is: 240,705.79
Step by Step Solution
- Step 1: Write the proportion equation
312,245.69 : 430,894.28 = 174,426.41 : x - Step 2: Convert to fraction form
312,245.69/430,894.28 = 174,426.41/x - Step 3: Cross multiply
312,245.69x = 430,894.28 × 174,426.41 - Step 4: Simplify right side
312,245.69x = 75,159,343,863.24 - Step 5: Solve for x
x = 75,159,343,863.24/312,245.69 - Step 6: Final answer
x = 240,705.79
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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.