Finding the Fourth Proportional to 323,850.15, 485,720.28 and 87,140.07
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Solution
The fourth proportional to 323,850.15, 485,720.28 and 87,140.07 is: 130,695.32
Step by Step Solution
- Step 1: Write the proportion equation
323,850.15 : 485,720.28 = 87,140.07 : x - Step 2: Convert to fraction form
323,850.15/485,720.28 = 87,140.07/x - Step 3: Cross multiply
323,850.15x = 485,720.28 × 87,140.07 - Step 4: Simplify right side
323,850.15x = 42,325,699,199.62 - Step 5: Solve for x
x = 42,325,699,199.62/323,850.15 - Step 6: Final answer
x = 130,695.32
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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.