Finding the Fourth Proportional to 312,237.68, 430,898.43 and 191,355.62
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Solution
The fourth proportional to 312,237.68, 430,898.43 and 191,355.62 is: 264,077.15
Step by Step Solution
- Step 1: Write the proportion equation
312,237.68 : 430,898.43 = 191,355.62 : x - Step 2: Convert to fraction form
312,237.68/430,898.43 = 191,355.62/x - Step 3: Cross multiply
312,237.68x = 430,898.43 × 191,355.62 - Step 4: Simplify right side
312,237.68x = 82,454,836,229.68 - Step 5: Solve for x
x = 82,454,836,229.68/312,237.68 - Step 6: Final answer
x = 264,077.15
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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.