Finding the Fourth Proportional to 399,400.90, 599,106.65 and 133,161.50
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Solution
The fourth proportional to 399,400.90, 599,106.65 and 133,161.50 is: 199,744.02
Step by Step Solution
- Step 1: Write the proportion equation
399,400.90 : 599,106.65 = 133,161.50 : x - Step 2: Convert to fraction form
399,400.90/599,106.65 = 133,161.50/x - Step 3: Cross multiply
399,400.90x = 599,106.65 × 133,161.50 - Step 4: Simplify right side
399,400.90x = 79,777,940,173.98 - Step 5: Solve for x
x = 79,777,940,173.98/399,400.90 - Step 6: Final answer
x = 199,744.02
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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.