Finding the Fourth Proportional to 352,155.75, 528,311.39 and 130,539.75
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Solution
The fourth proportional to 352,155.75, 528,311.39 and 130,539.75 is: 195,838.45
Step by Step Solution
- Step 1: Write the proportion equation
352,155.75 : 528,311.39 = 130,539.75 : x - Step 2: Convert to fraction form
352,155.75/528,311.39 = 130,539.75/x - Step 3: Cross multiply
352,155.75x = 528,311.39 × 130,539.75 - Step 4: Simplify right side
352,155.75x = 68,965,636,120.05 - Step 5: Solve for x
x = 68,965,636,120.05/352,155.75 - Step 6: Final answer
x = 195,838.45
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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.