Finding the Fourth Proportional to 245,622.54, 368,433.78 and 68,129.55
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Solution
The fourth proportional to 245,622.54, 368,433.78 and 68,129.55 is: 102,194.32
Step by Step Solution
- Step 1: Write the proportion equation
245,622.54 : 368,433.78 = 68,129.55 : x - Step 2: Convert to fraction form
245,622.54/368,433.78 = 68,129.55/x - Step 3: Cross multiply
245,622.54x = 368,433.78 × 68,129.55 - Step 4: Simplify right side
245,622.54x = 25,101,229,017.83 - Step 5: Solve for x
x = 25,101,229,017.83/245,622.54 - Step 6: Final answer
x = 102,194.32
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1.5x scale
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.