Finding the Fourth Proportional to 289,104.80, 433,657.20 and 102,135.20
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Solution
The fourth proportional to 289,104.80, 433,657.20 and 102,135.20 is: 153,202.80
Step by Step Solution
- Step 1: Write the proportion equation
289,104.80 : 433,657.20 = 102,135.20 : x - Step 2: Convert to fraction form
289,104.80/433,657.20 = 102,135.20/x - Step 3: Cross multiply
289,104.80x = 433,657.20 × 102,135.20 - Step 4: Simplify right side
289,104.80x = 44,291,664,853.44 - Step 5: Solve for x
x = 44,291,664,853.44/289,104.80 - Step 6: Final answer
x = 153,202.80
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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.