Finding the Fourth Proportional to 315,119.57, 472,457.90 and 115,414.00
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Solution
The fourth proportional to 315,119.57, 472,457.90 and 115,414.00 is: 173,039.89
Step by Step Solution
- Step 1: Write the proportion equation
315,119.57 : 472,457.90 = 115,414.00 : x - Step 2: Convert to fraction form
315,119.57/472,457.90 = 115,414.00/x - Step 3: Cross multiply
315,119.57x = 472,457.90 × 115,414.00 - Step 4: Simplify right side
315,119.57x = 54,528,255,177.99 - Step 5: Solve for x
x = 54,528,255,177.99/315,119.57 - Step 6: Final answer
x = 173,039.89
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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.