Finding the Fourth Proportional to 311,829.72, 430,324.98 and 168,589.74
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Solution
The fourth proportional to 311,829.72, 430,324.98 and 168,589.74 is: 232,653.82
Step by Step Solution
- Step 1: Write the proportion equation
311,829.72 : 430,324.98 = 168,589.74 : x - Step 2: Convert to fraction form
311,829.72/430,324.98 = 168,589.74/x - Step 3: Cross multiply
311,829.72x = 430,324.98 × 168,589.74 - Step 4: Simplify right side
311,829.72x = 72,548,376,493.71 - Step 5: Solve for x
x = 72,548,376,493.71/311,829.72 - Step 6: Final answer
x = 232,653.82
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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.