Finding the Fourth Proportional to 323,706.96, 485,560.44 and 136,720.08
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Solution
The fourth proportional to 323,706.96, 485,560.44 and 136,720.08 is: 205,080.12
Step by Step Solution
- Step 1: Write the proportion equation
323,706.96 : 485,560.44 = 136,720.08 : x - Step 2: Convert to fraction form
323,706.96/485,560.44 = 136,720.08/x - Step 3: Cross multiply
323,706.96x = 485,560.44 × 136,720.08 - Step 4: Simplify right side
323,706.96x = 66,385,862,201.64 - Step 5: Solve for x
x = 66,385,862,201.64/323,706.96 - Step 6: Final answer
x = 205,080.12
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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.