Finding the Fourth Proportional to 402,030.40, 603,062.34 and 135,817.96
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Solution
The fourth proportional to 402,030.40, 603,062.34 and 135,817.96 is: 203,732.60
Step by Step Solution
- Step 1: Write the proportion equation
402,030.40 : 603,062.34 = 135,817.96 : x - Step 2: Convert to fraction form
402,030.40/603,062.34 = 135,817.96/x - Step 3: Cross multiply
402,030.40x = 603,062.34 × 135,817.96 - Step 4: Simplify right side
402,030.40x = 81,906,696,771.63 - Step 5: Solve for x
x = 81,906,696,771.63/402,030.40 - Step 6: Final answer
x = 203,732.60
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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.