Finding the Fourth Proportional to 383,467.50, 528,631.79 and 268,389.99
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Solution
The fourth proportional to 383,467.50, 528,631.79 and 268,389.99 is: 369,990.88
Step by Step Solution
- Step 1: Write the proportion equation
383,467.50 : 528,631.79 = 268,389.99 : x - Step 2: Convert to fraction form
383,467.50/528,631.79 = 268,389.99/x - Step 3: Cross multiply
383,467.50x = 528,631.79 × 268,389.99 - Step 4: Simplify right side
383,467.50x = 141,879,479,489.83 - Step 5: Solve for x
x = 141,879,479,489.83/383,467.50 - Step 6: Final answer
x = 369,990.88
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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.