Finding the Fourth Proportional to 330,137.98, 493,751.46 and 287,396.71
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Solution
The fourth proportional to 330,137.98, 493,751.46 and 287,396.71 is: 429,827.99
Step by Step Solution
- Step 1: Write the proportion equation
330,137.98 : 493,751.46 = 287,396.71 : x - Step 2: Convert to fraction form
330,137.98/493,751.46 = 287,396.71/x - Step 3: Cross multiply
330,137.98x = 493,751.46 × 287,396.71 - Step 4: Simplify right side
330,137.98x = 141,902,545,161.70 - Step 5: Solve for x
x = 141,902,545,161.70/330,137.98 - Step 6: Final answer
x = 429,827.99
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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.