Finding the Fourth Proportional to 387,069.14, 580,640.97 and 150,430.34
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Solution
The fourth proportional to 387,069.14, 580,640.97 and 150,430.34 is: 225,659.99
Step by Step Solution
- Step 1: Write the proportion equation
387,069.14 : 580,640.97 = 150,430.34 : x - Step 2: Convert to fraction form
387,069.14/580,640.97 = 150,430.34/x - Step 3: Cross multiply
387,069.14x = 580,640.97 × 150,430.34 - Step 4: Simplify right side
387,069.14x = 87,346,018,535.03 - Step 5: Solve for x
x = 87,346,018,535.03/387,069.14 - Step 6: Final answer
x = 225,659.99
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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.