Finding the Fourth Proportional to 288,897.30, 398,699.55 and 166,410.99
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Solution
The fourth proportional to 288,897.30, 398,699.55 and 166,410.99 is: 229,659.42
Step by Step Solution
- Step 1: Write the proportion equation
288,897.30 : 398,699.55 = 166,410.99 : x - Step 2: Convert to fraction form
288,897.30/398,699.55 = 166,410.99/x - Step 3: Cross multiply
288,897.30x = 398,699.55 × 166,410.99 - Step 4: Simplify right side
288,897.30x = 66,347,986,828.05 - Step 5: Solve for x
x = 66,347,986,828.05/288,897.30 - Step 6: Final answer
x = 229,659.42
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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.