Finding the Fourth Proportional to 285,217.84, 427,794.36 and 74,872.18
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Solution
The fourth proportional to 285,217.84, 427,794.36 and 74,872.18 is: 112,299.76
Step by Step Solution
- Step 1: Write the proportion equation
285,217.84 : 427,794.36 = 74,872.18 : x - Step 2: Convert to fraction form
285,217.84/427,794.36 = 74,872.18/x - Step 3: Cross multiply
285,217.84x = 427,794.36 × 74,872.18 - Step 4: Simplify right side
285,217.84x = 32,029,896,324.90 - Step 5: Solve for x
x = 32,029,896,324.90/285,217.84 - Step 6: Final answer
x = 112,299.76
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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.