Finding the Fourth Proportional to 402,140.20, 603,297.09 and 135,894.82
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Solution
The fourth proportional to 402,140.20, 603,297.09 and 135,894.82 is: 203,871.56
Step by Step Solution
- Step 1: Write the proportion equation
402,140.20 : 603,297.09 = 135,894.82 : x - Step 2: Convert to fraction form
402,140.20/603,297.09 = 135,894.82/x - Step 3: Cross multiply
402,140.20x = 603,297.09 × 135,894.82 - Step 4: Simplify right side
402,140.20x = 81,984,949,452.07 - Step 5: Solve for x
x = 81,984,949,452.07/402,140.20 - Step 6: Final answer
x = 203,871.56
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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.