Finding the Fourth Proportional to 402,314.20, 603,860.10 and 202,859.80
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Solution
The fourth proportional to 402,314.20, 603,860.10 and 202,859.80 is: 304,485.75
Step by Step Solution
- Step 1: Write the proportion equation
402,314.20 : 603,860.10 = 202,859.80 : x - Step 2: Convert to fraction form
402,314.20/603,860.10 = 202,859.80/x - Step 3: Cross multiply
402,314.20x = 603,860.10 × 202,859.80 - Step 4: Simplify right side
402,314.20x = 122,498,939,113.98 - Step 5: Solve for x
x = 122,498,939,113.98/402,314.20 - Step 6: Final answer
x = 304,485.75
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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.