Finding the Fourth Proportional to 287,007.16, 430,576.26 and 87,355.84
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Solution
The fourth proportional to 287,007.16, 430,576.26 and 87,355.84 is: 131,053.70
Step by Step Solution
- Step 1: Write the proportion equation
287,007.16 : 430,576.26 = 87,355.84 : x - Step 2: Convert to fraction form
287,007.16/430,576.26 = 87,355.84/x - Step 3: Cross multiply
287,007.16x = 430,576.26 × 87,355.84 - Step 4: Simplify right side
287,007.16x = 37,613,350,876.36 - Step 5: Solve for x
x = 37,613,350,876.36/287,007.16 - Step 6: Final answer
x = 131,053.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.