Finding the Fourth Proportional to 402,555.19, 603,906.60 and 165,768.70
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Solution
The fourth proportional to 402,555.19, 603,906.60 and 165,768.70 is: 248,683.45
Step by Step Solution
- Step 1: Write the proportion equation
402,555.19 : 603,906.60 = 165,768.70 : x - Step 2: Convert to fraction form
402,555.19/603,906.60 = 165,768.70/x - Step 3: Cross multiply
402,555.19x = 603,906.60 × 165,768.70 - Step 4: Simplify right side
402,555.19x = 100,108,812,003.42 - Step 5: Solve for x
x = 100,108,812,003.42/402,555.19 - Step 6: Final answer
x = 248,683.45
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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.