Finding the Fourth Proportional to 145,161.21, 217,657.07 and 56,310.90
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Solution
The fourth proportional to 145,161.21, 217,657.07 and 56,310.90 is: 84,433.48
Step by Step Solution
- Step 1: Write the proportion equation
145,161.21 : 217,657.07 = 56,310.90 : x - Step 2: Convert to fraction form
145,161.21/217,657.07 = 56,310.90/x - Step 3: Cross multiply
145,161.21x = 217,657.07 × 56,310.90 - Step 4: Simplify right side
145,161.21x = 12,256,465,503.06 - Step 5: Solve for x
x = 12,256,465,503.06/145,161.21 - Step 6: Final answer
x = 84,433.48
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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.