Finding the Fourth Proportional to 385,058.41, 577,626.19 and 132,305.60
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Solution
The fourth proportional to 385,058.41, 577,626.19 and 132,305.60 is: 198,471.66
Step by Step Solution
- Step 1: Write the proportion equation
385,058.41 : 577,626.19 = 132,305.60 : x - Step 2: Convert to fraction form
385,058.41/577,626.19 = 132,305.60/x - Step 3: Cross multiply
385,058.41x = 577,626.19 × 132,305.60 - Step 4: Simplify right side
385,058.41x = 76,423,180,756.97 - Step 5: Solve for x
x = 76,423,180,756.97/385,058.41 - Step 6: Final answer
x = 198,471.66
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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.