Finding the Fourth Proportional to 644,321.71, 966,515.91 and 164,553.99
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Solution
The fourth proportional to 644,321.71, 966,515.91 and 164,553.99 is: 246,839.50
Step by Step Solution
- Step 1: Write the proportion equation
644,321.71 : 966,515.91 = 164,553.99 : x - Step 2: Convert to fraction form
644,321.71/966,515.91 = 164,553.99/x - Step 3: Cross multiply
644,321.71x = 966,515.91 × 164,553.99 - Step 4: Simplify right side
644,321.71x = 159,044,049,388.98 - Step 5: Solve for x
x = 159,044,049,388.98/644,321.71 - Step 6: Final answer
x = 246,839.50
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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.