Finding the Fourth Proportional to 640,112.56, 960,311.81 and 240,756.79
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Solution
The fourth proportional to 640,112.56, 960,311.81 and 240,756.79 is: 361,188.95
Step by Step Solution
- Step 1: Write the proportion equation
640,112.56 : 960,311.81 = 240,756.79 : x - Step 2: Convert to fraction form
640,112.56/960,311.81 = 240,756.79/x - Step 3: Cross multiply
640,112.56x = 960,311.81 × 240,756.79 - Step 4: Simplify right side
640,112.56x = 231,201,585,170.13 - Step 5: Solve for x
x = 231,201,585,170.13/640,112.56 - Step 6: Final answer
x = 361,188.95
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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.