Finding the Fourth Proportional to 449,763.84, 674,762.60 and 134,220.74
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Solution
The fourth proportional to 449,763.84, 674,762.60 and 134,220.74 is: 201,365.98
Step by Step Solution
- Step 1: Write the proportion equation
449,763.84 : 674,762.60 = 134,220.74 : x - Step 2: Convert to fraction form
449,763.84/674,762.60 = 134,220.74/x - Step 3: Cross multiply
449,763.84x = 674,762.60 × 134,220.74 - Step 4: Simplify right side
449,763.84x = 90,567,135,496.32 - Step 5: Solve for x
x = 90,567,135,496.32/449,763.84 - Step 6: Final answer
x = 201,365.98
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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.