Finding the Fourth Proportional to 312,234.71, 430,884.36 and 168,994.71
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Solution
The fourth proportional to 312,234.71, 430,884.36 and 168,994.71 is: 233,212.95
Step by Step Solution
- Step 1: Write the proportion equation
312,234.71 : 430,884.36 = 168,994.71 : x - Step 2: Convert to fraction form
312,234.71/430,884.36 = 168,994.71/x - Step 3: Cross multiply
312,234.71x = 430,884.36 × 168,994.71 - Step 4: Simplify right side
312,234.71x = 72,817,177,461.74 - Step 5: Solve for x
x = 72,817,177,461.74/312,234.71 - Step 6: Final answer
x = 233,212.95
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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.