Finding the Fourth Proportional to 395,258.08, 545,455.52 and 213,969.96
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Solution
The fourth proportional to 395,258.08, 545,455.52 and 213,969.96 is: 295,278.20
Step by Step Solution
- Step 1: Write the proportion equation
395,258.08 : 545,455.52 = 213,969.96 : x - Step 2: Convert to fraction form
395,258.08/545,455.52 = 213,969.96/x - Step 3: Cross multiply
395,258.08x = 545,455.52 × 213,969.96 - Step 4: Simplify right side
395,258.08x = 116,711,095,912.24 - Step 5: Solve for x
x = 116,711,095,912.24/395,258.08 - Step 6: Final answer
x = 295,278.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.