Finding the Fourth Proportional to 408,840.40, 613,625.10 and 240,149.80
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Solution
The fourth proportional to 408,840.40, 613,625.10 and 240,149.80 is: 360,438.80
Step by Step Solution
- Step 1: Write the proportion equation
408,840.40 : 613,625.10 = 240,149.80 : x - Step 2: Convert to fraction form
408,840.40/613,625.10 = 240,149.80/x - Step 3: Cross multiply
408,840.40x = 613,625.10 × 240,149.80 - Step 4: Simplify right side
408,840.40x = 147,361,945,039.98 - Step 5: Solve for x
x = 147,361,945,039.98/408,840.40 - Step 6: Final answer
x = 360,438.80
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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.