Finding the Fourth Proportional to 402,156.36, 603,235.62 and 135,845.64
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Solution
The fourth proportional to 402,156.36, 603,235.62 and 135,845.64 is: 203,768.82
Step by Step Solution
- Step 1: Write the proportion equation
402,156.36 : 603,235.62 = 135,845.64 : x - Step 2: Convert to fraction form
402,156.36/603,235.62 = 135,845.64/x - Step 3: Cross multiply
402,156.36x = 603,235.62 × 135,845.64 - Step 4: Simplify right side
402,156.36x = 81,946,928,869.70 - Step 5: Solve for x
x = 81,946,928,869.70/402,156.36 - Step 6: Final answer
x = 203,768.82
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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.